Wireless communication plug-in

Abstract

The utility model discloses a wireless communication plug-in, which comprises a main control unit and a wireless communication unit, the wireless communication unit is connected with the main control unit, the wireless communication unit comprises a 2G / 3G / 4G communication unit, an SIM card seat, a WLAN communication unit, a GPS / BD module and a combiner, the 2G / 3G / 4G communication unit is connected with the main control unit, the 2G / 3G / 4G communication unit adopts an EC20 module, the SIM card seat is used for placing an SIM card, the WLAN communication unit is connected with the main control unit, the GPS / BD module is connected with the combiner, and the combiner is connected with the main control unit. The GPS / BD module is connected with the main control unit, an interface of the GPS / BD module is 24PIN, a GPS board card in the GPS / BD module can be correspondingly adjusted according to user requirements, and the combiner is used for combining 3G / 4G signals in 2G / 3G / 4G communication with WLAN signals in WLAN communication. The EC20 module is used to realize 2G / 3G / 4G communication compatibility, and the combiner is used to improve the signal transmission efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of shunting operation safety protection, especially relates to a wireless communication plug-in. BACKGROUND

[0002] The wireless communication plug-in used in the present shunting auxiliary protection device is an x86 architecture winxp system, and the main function is to have 4G dial-up internet access, positioning information processing, communication with other boards, communication with the background, etc., which is an important component of the shunting auxiliary protection device.

[0003] There are many kinds of wireless communication plug-ins at present, and the chips and architectures are different, the connection forms of the plug-ins are also different, the same function needs to be developed many times, the compatibility is poor, the products cannot be used universally, and the maintenance is not convenient. SUMMARY

[0004] The utility model discloses an embodiment provides a kind of wireless communication plug-in, to solve the problem of poor compatibility of wireless communication plug-in.

[0005] Based on the above purpose, in an embodiment, a wireless communication plug-in is provided, comprising: a master control unit and a wireless communication unit, the wireless communication unit is connected with the master control unit, the wireless communication unit comprises: 2G / 3G / 4G communication, a SIM card seat, WLAN communication, a GPS / BD module and a combiner, the 2G / 3G / 4G communication is connected with the master control unit, the 2G / 3G / 4G communication uses EC20 module, the SIM card seat is used to place SIM card, the WLAN communication is connected with the master control unit, the GPS / BD module is connected with the master control unit, the interface of the GPS / BD module is 24PIN, the GPS board in the GPS / BD module can be adjusted according to user demand, and the combiner is used to combine 3G / 4G signals in the 2G / 3G / 4G communication and WLAN signals in the WLAN communication.

[0006] In an embodiment, the master control unit uses i.MX6Q as a core board module, and the core board module comprises: a CPU processor, the CPU processor is of i.MX6 solo MCIMX6S6AVM08AD type, the core board module is extended with DDR3L, eMMC, FLASH storage and Ethernet hundred megabit controller, and the CPU processor leads out LVDS, HDMI, SPI, I2C, I2S, PWM, CAN, UART, CSI, SATA, PCIe, USB, SD, GPIO multiple interfaces.

[0007] In an embodiment, the EC20 module is connected with the core board module of the master control unit through a USB switch, the SIM card seat is a plug-in card seat with a size of 25mm*15mm and a thickness of 0.76mm, the WLAN communication adopts a WG7833-B0 module, the WG7833-B0 module is connected with the core board module, the GPS / BD module has a Beidou / GPS dual-mode satellite positioning, the GPS / BD module is connected with the core board module and the case, and the combiner is a CPMD05-0278-3.

[0008] In an embodiment, the wireless communication plug-in further includes a wired communication unit connected with a mother board and a front panel, the wired communication unit includes an Ethernet interface, a CAN communication, a transceiver and an I2C interface, the Ethernet interface of the core board module of the master control unit includes a first route gigabit Ethernet interface, a second route hundred megabit Ethernet interface and a third route hundred megabit Ethernet interface, the first route gigabit Ethernet interface and the second route hundred megabit Ethernet interface are connected with the mother board, the third route hundred megabit Ethernet interface is connected with the front panel through an IP178 switch, the other end of the expanded third route hundred megabit Ethernet interface is connected with the mother board, the CAN communication is connected with the mother board, the transceiver is connected with the mother board, and the I2C interface is connected with the mother board.

[0009] In an embodiment, the wireless communication plug-in further includes a USB unit and an ID unit, the USB unit is used for connecting the master control unit and a public network module, the USB unit adopts a software dedicated USB hub, the ID unit is connected with the master control unit, the ID unit includes a core board module ID unit and a bottom plate ID unit, the ID unit of the core board module is a MAX31826 provided by the core board module of the master control unit, and the ID unit of the bottom plate is a MAX31826.

[0010] In an embodiment, the wireless communication plug-in further includes a maintenance circuit unit and a debugging port, the maintenance circuit unit adopts an LTC2945 to measure inlet voltage and current, the LTC2945 can be not welded, the maintenance circuit unit further includes a duration recorder, and the duration recorder is a DS1682.

[0011] In an embodiment, the wireless communication plug-in further comprises a control circuit unit for controlling the power supply of the USB unit, the public network module, the WLAN communication and the GPS / BD module in the wireless communication plug-in, and a watchdog is further arranged in the control circuit unit for restarting the CPU processor when a fault occurs.

[0012] In an embodiment, the wireless communication plug-in further comprises an indicator unit for indicating the status of the wireless communication plug-in and an encryption unit provided with an encryption chip for authenticating the circuit board, and the encryption chip is externally provided in the form of software.

[0013] In an embodiment, the wireless communication plug-in further comprises a power supply unit selected from a wide input range of 9-36V isolation.

[0014] In an embodiment, the wireless communication plug-in further comprises an external interface isolation unit provided with a magnetic bead and a TVS isolation device, and a high-voltage ceramic capacitor is arranged between the isolation devices for reducing radiation emission.

[0015] The wireless communication plug-in realizes seamless switching between 3G and 4G networks by using an EC20 module in 2G / 3G / 4G communication, is downward compatible with 2G network, realizes 2G / 3G / 4G communication compatibility, the combiner combines the radio frequency signals of two ports of 3G / 4G communication and WLAN communication, supports one radio frequency port, and no mutual interference is generated between the ports, the transmission efficiency of signals is improved, the interface definition of the GPS / BD signal is set as 24PIN, the interface definition is consistent with that of the original wireless communication plug-in, is compatible with other plug-ins in the existing shunting auxiliary protection device, and in the GPS / BD signal, the user can provide a corresponding GPS board card according to own needs to realize the universality and compatibility of the GPS / BD signal. The interface definition of the 2G / 3G / 4G communication module and the GPS / BD signal of the unified wireless communication unit facilitates the maintenance of the wireless communication plug-in. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is the overall block diagram of the wireless communication plug-in in an embodiment of the present application;

[0018] Figure 2 is the core board module interface schematic diagram in an embodiment of the utility model;

[0019] Figure 3 is the front panel schematic diagram in an embodiment of the utility model.

[0020] Mark explanation: 1, main control unit, 101, wired communication unit, 102, core board module's memory setting, 103, core board module ID unit, 104, encryption chip, 105, debugging serial port, 2, bottom plate, 201, wireless communication unit, 202, USB switch, 203, bottom plate ID unit, 204, maintenance circuit unit's power monitor, 205, maintenance circuit unit's chronograph recorder, 206, indicator light unit, 207, encryption unit. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 those skilled in the art without creative labor fall within the scope of the present application.

[0022] It should be understood that the present application can be implemented in different forms, and should not be interpreted as being limited to the embodiments presented here. On the contrary, these embodiments are provided to make the disclosure complete and complete, and to fully convey the scope of the present application to those skilled in the art. In the drawings, the size and relative size of the layers and regions may be exaggerated for clarity throughout the same reference signs represent the same elements.

[0023] It should be understood that when an element or layer is referred to as "on", "adjacent", "connected to", or "coupled to" another element or layer, it can be directly on, adjacent to, connected or coupled to the other element or layer, or there can be intervening elements or layers. Conversely, when an element is referred to as "directly on", "directly adjacent", "directly connected to", or "directly coupled to" another element or layer, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, the first element, component, region, layer or part discussed below can be represented as the second element, component, region, layer or part without departing from the teachings of the present application.

[0024] Spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and / or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial descriptions used herein interpreted accordingly.

[0025] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] For a thorough understanding of the present application, reference should be made to the following detailed description, in conjunction with the accompanying drawings, in which:

[0027] In an embodiment, a wireless communication plug-in is provided, comprising: a master control unit and a wireless communication unit, the wireless communication unit being connected with the master control unit, the wireless communication unit comprising: a 2G / 3G / 4G communication, a SIM card seat, a WLAN communication, a GPS / BD module and a combiner, the 2G / 3G / 4G communication being connected with the master control unit, the 2G / 3G / 4G communication adopting an EC20 module, the SIM card seat being used for placing a SIM card, the WLAN communication being connected with the master control unit, the GPS / BD module being connected with the master control unit, an interface of the GPS / BD module being 24PIN, a GPS board card in the GPS / BD module being adjustable according to user demand, and the combiner being used for merging a 3G / 4G signal in the 2G / 3G / 4G communication and a WLAN signal in the WLAN communication.

[0028] In an embodiment, the wireless communication plug-in further comprises a power management unit, the power management unit being connected with the master control unit and the wireless communication unit, the power management unit being used for managing power supply of the master control unit and the wireless communication unit. Figure 1As shown, the wireless communication plug-in is provided with a master control unit 1 and a wireless communication unit 201, and the master control unit 1 is connected with the wireless communication unit 201. The wireless communication unit 201 has 2G / 3G / 4G communication, WLAN communication, GPS / BD module and combiner. The 2G / 3G / 4G communication adopts EC20 module of Shanghai Quectel, is compatible with 2G / 3G / 4G signal, the WLAN communication is connected with the master control unit 1, the GPS / BD module is also connected with the master control unit 1, the interface definition of the GPS / BD module is designed as 24PIN, and the GPS board in the GPS / BD module is provided by the corresponding user. The combiner combines the 3G / 4G signal in the 2G / 3G / 4G communication and the WLAN signal in the WLAN communication.

[0029] In the embodiment, the 2G / 3G / 4G communication of the wireless communication unit adopts EC20 module of Shanghai Quectel, supports maximum downlink rate of 150Mbps and maximum uplink rate of 50Mbps, realizes seamless switching between 3G network and 4G network, can also be downward compatible with 2G GSM / GPRS, realizes 2G / 3G / 4G communication compatibility, has built-in multi-constellation high-precision positioning GNSS receiver, improves positioning speed and accuracy, is compatible with multiple operating systems, supports WCDMA:B1 / B8, TD-SCDMA:B34 / B39, CDMA:BC0, GPS, GLONASS, BeiDou, Galileo, QZSS, the combiner combines the radio frequency signals of the two ports of 3G / 4G communication and WLAN communication, supports one radio frequency port, and no mutual interference is generated between the ports, improves the transmission efficiency of the signal, only one way is needed to output to other plug-ins of the shunting auxiliary protection device after the two signals are combined, the cost is saved to a certain extent, the interface definition of the GPS / BD signal is designed as 24PIN, which is consistent with the interface definition of the original wireless communication plug-in, is compatible with other plug-ins in the existing shunting auxiliary protection device, the user can adjust the GPS board of the GPS / BD signal according to the need, realizes the universality and compatibility of the product, and the module chips in the wireless communication plug-in are unified, which is convenient for subsequent maintenance.

[0030] In an embodiment, the master control unit adopts i.MX6Q as a core board module, and the core board module includes a CPU processor, the CPU processor is i.MX6 solo MCIMX6S6AVM08AD, the core board module is expanded with DDR3L, eMMC, FLASH storage and Ethernet hundred megabit controller, and the CPU processor leads out LVDS, HDMI, SPI, I2C, I2S, PWM, CAN, UART, CSI, SATA, PCIe, USB, SD, GPIO multiple interfaces.

[0031] Wherein, as shown in Figure 1 The master control unit 1 uses i.MX6Q as the core board module, the memory setting 102 of the core board module has 64-bit memory bus expansion 2G DDR3L memory, 4GB eMMC, and at the same time, a FLASH memory and two Ethernet 100M controllers are expanded by using parallel bus, and ferroelectric storage is also set, ID and temperature chips are expanded as core module ID unit 103 and encryption chip 104 by using I2C, FLASH is expanded by using SPI, and a debugging serial port 105 is also set. Four-way UART is set, which can be used as serial port, RS485, etc., and two-way CAN interface and three-way SPI interface are also set. The CPU processor is set in the core board module, the model of which is i.MX6 solo MCIMX6S6AVM08AD, the processor has 1 Arm Cortex-A9 core, each core runs at a frequency of up to 1GHz, 1MB L2 cache, 32KB instruction and data cache, and is pin TO pin compatible with 4-core i.MX6Q, and various interfaces are led out by using the powerful resources of the CPU processor, such as LVDS, HDMI, SPI, I2C, I2S, PWM, CAN, UART, CSI, SATA, PCIe, USB, SD, GPIO, etc. Figure 2 As shown in

[0032] In this embodiment, the core board module adopts the i.MX6Q, which can meet the requirements of high-speed data transmission and large-scale data storage. It is compatible with both Android and Linux systems, provides rich software development resources and flexible language selection, and includes an encryption chip for circuit board authentication to protect intellectual property rights. The extended ID and temperature chips integrate temperature measurement, providing temperature measurement functionality and an OTP area for storing product ID numbers. It features 4GB eMMC, 128MB parallel FLASH, 32MB serial FLASH, and 32MB ferroelectric storage for various storage applications. The i.MX6solo MCIMX6S6AVM08AD CPU processor is characterized by high performance and low power consumption. Its PMICPower 5V interface connects to a power management integrated chip, providing stable and efficient power management for the wireless communication module. Four asynchronous serial interfaces (UART) can be used as serial ports and RS485; a PCIe interface can be used to expand PCIe devices; a SATA interface can be used to expand hard drives; and a USB interface supports USB peripherals. The OTG interface allows direct connection and data exchange with USB devices; the SD card interface supports expansion with TF cards or Micro SD cards and other SDIO interface devices. Various interfaces are brought out through the core board module to enable communication between units and complete the function of the wireless communication plug-in.

[0033] In one embodiment, the EC20 module is connected to the core board module of the main control unit via a USB switch. The SIM card slot is an insert type with dimensions of 25mm × 15mm and a thickness of 0.76mm. The WLAN communication uses a WG7833-B0 module, which is connected to the core board module. The GPS / BD module has BeiDou / GPS dual-mode satellite positioning and is connected to the core board module and the chassis. The combiner model is CPMD05-0278-3.

[0034] Among them, such as Figure 1As shown, the USB switch 202 is arranged on the bottom plate 2, the EC20 module in the wireless communication unit 201 is connected with the host control unit 1 through the USB switch 202, the SIM card seat arranged in the wireless communication unit 202 selects the plug-in card seat, and the size is limited to 25mmx15mm, the thickness is 0.76mm, the WLAN communication adopts the WG7833-B0 module, which supports 2.4G and 5G, and is connected with the host control unit 1, the GPS / BD module has Beidou / GPS dual-mode satellite positioning, is connected with the host control unit 1 through the UART interface, and is directly led out to the case through the SMBA interface, the differential selection uses UB4B0M and UB351, and the evaluation of the crowd is made again. The combiner model is CP MD05-0278-3, the combiner is separately configured for the 15S communication board and the TSC2 plug-in, 3G / 4G communication (800-2700MHz) and WLAN (5700-5900MHz) are combined on the 15S wireless communication board, and when the WLAN communication is configured, the radio frequency combiner is required. The combiner and the wireless communication board are combined for the TSC2 plug-in, and a double-track single plug-in is formed.

[0035] In the embodiment, the USB switch is used to connect the EC20 module with the host control unit, which is beneficial to improve the speed and efficiency of data transmission, has safety function, prevents unauthorized access of the wireless communication plug-in and guarantees data security, and is compatible with various operating systems. The SIM card requires plug-in, and the plug-in SIM card seat is selected, which can well protect the SIM card from external interference and prevent the SIM card from being separated due to vibration or impact. The WLAN communication adopts the WG7833-B0 module, which can provide stable connection and fast data transmission, integrates multiple functions in a small package, reduces the complexity and volume of product design, has the characteristics of low power consumption, helps to prolong the use time and battery life of the product. The combiner is used to combine 2G / 3G / 4G signals and WLAN signals, reduces the number of transmission lines, reduces the complexity and cost, is convenient for maintenance, and the combiner can realize isolation between signal sources, avoid mutual interference, guarantee the quality of signals and the stability of the wireless communication plug-in, and also improve the transmission distance of signals.

[0036] In an embodiment, the wireless communication plug-in further comprises a wired communication unit connected with the motherboard and the front panel, the wired communication unit comprising: an Ethernet interface, a CAN communication, a transceiver and an I2C interface, the Ethernet interface of the core board module of the master control unit comprising: a first route of gigabit Ethernet interface, a second route of hundred megabit Ethernet interface and a third route of hundred megabit Ethernet interface, the first route of gigabit Ethernet interface and the second route of hundred megabit Ethernet interface being connected with the motherboard, the third route of hundred megabit Ethernet interface being connected with the front panel through the IP178 switch expansion, the other end of the expanded third route of hundred megabit Ethernet interface being connected with the motherboard, the CAN communication being connected with the motherboard, the transceiver being connected with the motherboard, and the I2C interface being connected with the motherboard.

[0037] As shown in Figure 1 and 3 The wired communication unit 101 is drawn out by the master control unit 1 with 3 routes of Ethernet interface, 1 route of gigabit Ethernet and 1 route of hundred megabit Ethernet, which are directly drawn out to the motherboard interface, and the other route of hundred megabit Ethernet is expanded to 2 routes through the IP178 switch, one route to the front panel and the other route to the motherboard interface, wherein the external Ethernet is isolated through the transformer; the master control unit 1 draws out 2 routes of CAN interface, and additionally expands 2 routes of CAN through the SPI interface of the master control unit 1, and is connected with the motherboard through the isolation device, wherein the CAN transceiver adopts the isolation CAN transceiver & ADM3053BRWZ & ADI; 1 route of isolation RS485 / RS422 transceiver is connected with the motherboard, and the RS485 / RS422 transceiver adopts (100001572 RS422 / RS485 transceiver & ADM2587EBRWZ & ADI). 2 routes of TTL level serial ports are drawn out through the URAT interface and connected with the motherboard, which are used as the interfaces of the expanded isolation RS232 and RS422 transceivers; the I2C interface is connected with the motherboard.

[0038] In this embodiment, the external Ethernet is isolated through the transformer, which can enhance the signal, make the transmission distance farther, significantly enhance the driving ability, isolate the wireless communication plug-in from the outside through the transformer, enhance the anti-interference ability, and also provide electrical isolation to protect the equipment from lightning damage and the like; the CAN transceiver sends signals out through the data bus, receives the data on the bus at the same time, and transmits the data back, so that the use of the CAN transceiver enables the wireless communication plug-in to efficiently cooperate with other plug-ins of the shunting auxiliary protection device, and ensures the safety and reliability of the shunting operation. The RS485 / RS422 transceiver adopts differential signal transmission, has strong anti-common-mode interference ability, can maintain stable data transmission in a noisy environment, supports one-to-many communication mode, and improves the flexibility and expansibility of communication.

[0039] In an embodiment, the wireless communication plug-in further comprises a USB unit and an ID unit, the USB unit being used to connect the host unit and the public network module, the USB unit adopting a software-specific USB hub; the ID unit being connected with the host unit, the ID unit comprising a core board module ID unit and a backboard ID unit, the core board module ID unit being a MAX31826 self-provided by the core board module of the host unit, and the backboard ID unit being a MAX31826.

[0040] As the interface of the public network module is limited, the communication between the CPU processor and the public network module is realized by using the USB interface, that is, a USB HUB is needed, and a software-specific USB hub & GL852GT (QFN 28) & GENESYS is used. Figure 1 As shown in the figure, the core board module has a self-provided MAX31826 which can be used as the core board module ID unit 103 to store the product ID, and the core board module ID unit 103 is connected with the host unit 1 through a DS2484R, and the CPU processor can access and acquire the temperature of the core board module through an I2C interface. A MAX31826 is added on the backboard 2 as the backboard ID unit 203, and the backboard ID unit 203 is connected with the host unit 1 through a DS2484R, and the CPU processor can access and acquire the temperature of the backboard through an I2C interface.

[0041] In the embodiment, the USB HUB can expand the USB interface, support the data transmission function, and users can conveniently transmit data between multiple devices to improve the work efficiency. The USB HUB has a built-in power supply, can provide more stable power supply, reduce signal interference, and make the operation of the wireless communication plug-in more stable. When connecting the core board ID unit and the host unit, a DS2484R is used, which supports a communication rate of 100 kHz and 400 kHz, supports standard and high-speed 1-Wire communication, improves the flexibility and compatibility of the wireless communication plug-in, can be turned off through software control, uses less power when not needed, can reduce power consumption, and further reduces the use cost. Moreover, the working temperature range of the DS2484R is wide, and it can work normally in extreme environments. Through the I2C interface, the temperature of the core board module and the backboard can be accessed and acquired, the overheating problem can be found and handled in time, the device failure caused by overheating can be avoided, the stable operation of the wireless communication plug-in can be ensured, the working state or environmental conditions of the wireless communication plug-in can be adjusted in time, the performance of the wireless communication plug-in can be optimized, the service life can be prolonged, and the normal work of the train can be ensured.

[0042] In one embodiment, the wireless communication plug-in further includes a maintenance circuit unit and a debugging port. The maintenance circuit unit uses an LTC2945 to measure the input voltage and current. The LTC2945 does not need to be soldered. The maintenance circuit unit also includes a time recorder, which is a DS1682. The debugging port is connected to the chassis. When the debugging port performs network debugging, it uses the Ethernet interface of the wired communication unit in the wireless communication plug-in.

[0043] Among them, such as Figure 1 As shown, the maintenance circuit unit uses a power monitor 204 (model 204LTC2945) to measure the input voltage and current, and a time recorder 205 (model DS1682) is added to the wireless communication plug-in; the UART of the core module of the main control unit 1 is connected to the corresponding connector on the chassis through an isolated serial port chip, and the external Ethernet port can be used as a network debugging interface.

[0044] In this embodiment, a power monitor 204 (model LTC2945) is used to measure the input voltage and current. When the measured value exceeds a set threshold, an alarm is issued to promptly detect and resolve power supply problems, preventing system failures. This eliminates the need for soldering, reducing costs. A DS1682 time recorder is used to achieve high-precision timing, monitoring events with a resolution of one-quarter of a second. The total accumulated time can reach 34 years, maintaining accurate timing under various ambient temperatures. It is compatible with a power supply range of 2.5V to 5.5V and uses EEPROM technology to store data, ensuring data retention even without power, eliminating the need for a backup power supply. When the total accumulated time or number of events reaches a user-preset alarm value, a signal is issued to alert the user. A write-disable function is also provided to prevent unauthorized memory rewriting or deletion, enhancing data security. A debugging port is provided on the wireless communication plug-in to monitor and control the debugging process, more efficiently locating and repairing errors. Remote debugging and maintenance are also possible, greatly improving flexibility and convenience. Comprehensive testing can be performed through the debugging port, improving testing accuracy and efficiency.

[0045] In one embodiment, the wireless communication plug-in further includes a control circuit unit for controlling the power supply of the USB unit and its public network module, the WLAN communication and the GPS / BD module in the wireless communication plug-in. The control circuit unit is also equipped with a watchdog timer for restarting the CPU processor in the event of a fault.

[0046] Among them, the power setting control circuit unit for each major module (public network, WLAN, GPS / BD, USB hub, etc.) of the wireless communication plug-in can restart the CPU processor through software or watchdog if the CPU processor has a problem.

[0047] In this embodiment, the control circuit power supply is provided, and if a fault occurs, the power can be restarted to retry the start, which makes up for occasional failures; a watchdog is provided in the control circuit unit to periodically detect the running state of the wireless communication plug-in, and if an abnormality or stop response occurs, the watchdog triggers a restart operation to restore the normal working state, and can also provide software protection function to prevent unauthorized access or attack; the running state of the system can be monitored, and when an abnormality or unauthorized access is detected, appropriate measures such as disabling user operation, sending alarm information, etc. are taken to protect the safety and reliability of the wireless communication plug-in.

[0048] In an embodiment, the wireless communication plug-in further comprises an indicator light unit and an encryption unit, the indicator light unit is used to indicate the state of the wireless communication plug-in; the encryption unit is provided with an encryption chip, the encryption chip is used to authenticate the circuit board, and the encryption chip is cooperated with the outside in the form of software.

[0049] As shown in the figure, Figure 1 The indicator light unit 206 is located on the bottom plate 2, and the unit in the indicator light unit 206 is a hard light, and other indicator lights are defined as follows:

[0050]

[0051] The encryption unit 207 reserves a special position for the encryption chip on the bottom plate 2, and cooperates with the outside in the form of software, and the encryption unit complies with the basic requirements of network security level three protection (S3A2G3) specified in GB / T 22239-2019.

[0052] In this embodiment, the state of the wireless communication plug-in is displayed through the indicator light, and the intuitive indication can help quickly understand the running status of the plug-in, so that appropriate measures can be taken in time, reduce downtime, improve work efficiency, and reduce operation risk. Through the indicator light, the time and cost of troubleshooting can be saved. By setting the encryption chip, the key data is safely stored, the sensitive information is protected, and the security of data transmission is ensured.

[0053] In an embodiment, the wireless communication plug-in further comprises a power supply unit, and the power supply unit selects a wide input range of 9-36V isolation.

[0054] Among them, the power module has the input requirement of dual-channel isolation power supply, and the voltage input range has the requirement of 12V and 24V, so the wide input range of 9-36V isolation is selected to realize the compatibility of the power module with the two voltages. Due to the dual power supply design of the 15S wireless communication board and the isolation dual power supply design of the STO, in order to reduce the occupation of the connector port and at the same time compatible with the two designs, the definition of Z2, 4, 6 is adjusted to II system power supply, and the motherboard power supply part of the second generation STO is adjusted synchronously.

[0055] In the embodiment, the source unit selects a wide input range of 9-36V isolation compatible with two voltages, adapts to different input voltage environments, ensures the normal operation of the wireless communication plug-in, avoids equipment failure or damage caused by voltage fluctuations or abnormal conditions, has high reliability and stability, maximizes energy consumption, and has high energy efficiency. Users can use the same adapter in different countries and regions without worrying about power adapter problems, which is very convenient.

[0056] In an embodiment, the wireless communication plug-in further comprises an external interface isolation unit, the external interface isolation unit is provided with a magnetic bead and a TVS isolation device, a high-voltage ceramic capacitor is arranged between the isolation devices, and the high-voltage ceramic capacitor is used to reduce radiation emission.

[0057] In the embodiment, the wireless communication plug-in considers electromagnetic compatibility, the magnetic bead arranged in the external interface isolation unit can suppress high-frequency noise and peak interference on the signal line and the power line, improve stability, absorb electrostatic pulses, protect sensitive elements from damage caused by electrostatic discharge, effectively reduce the internal resistance of the power supply, and improve the stability of the power supply. At the same time, it effectively prevents the influence of the self-induction effect of the power line and ensures the normal work of the plug-in; when a transient voltage higher than the normal voltage appears, the TVS diode can quickly conduct and clamp the excess voltage at a safe level, thereby protecting other elements from damage, also has a bidirectional protection function, and the corresponding speed of the TVS is very fast, effectively dealing with the rapidly changing transient voltage; the high-voltage ceramic capacitor can withstand high voltage, has low dielectric loss and long service life, reduces the cost to a certain extent, and can also reduce radiation emission.

[0058] The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A wireless communication plug-in, characterized by, The application relates to a wireless communication plug-in, which comprises a main control unit and a wireless communication unit connected with the main control unit, wherein the wireless communication unit comprises 2G / 3G / 4G communication, a SIM card seat, WLAN communication, a GPS / BD module and a combiner; the 2G / 3G / 4G communication is connected with the main control unit, the 2G / 3G / 4G communication adopts an EC20 module, the SIM card seat is used for placing a SIM card, the WLAN communication is connected with the main control unit, the GPS / BD module is connected with the main control unit, the interface of the GPS / BD module is a 24PIN interface, the GPS board in the GPS / BD module can be adjusted according to user requirements, and the combiner is used for combining 3G / 4G signals in the 2G / 3G / 4G communication and WLAN signals in the WLAN communication. The main control unit adopts an i.MX6Q as a core board module, the core board module comprises a CPU processor, the CPU processor is of an i.MX6 soloMCIMX6S6AVM08AD type, the core board module is extended with DDR3L, eMMC, FLASH storage and an Ethernet hundred-megabyte controller, and the CPU processor leads out LVDS, HDMI, SPI, I2C, I2S, PWM, CAN, UART, CSI, SATA, PCIe, USB, SD and GPIO interfaces.

2. The wireless communication card of claim 1, wherein, The EC20 module is connected with the core board module of the main control unit through a USB switch, the SIM card seat is selected to be a plug-in type and has a size of 25mm*15mm, a thickness of 0.76mm, the WLAN communication adopts a WG7833-B0 module, the WG7833-B0 module is connected with the core board module of the main control unit, the GPS / BD module has a Beidou / GPS dual-mode satellite positioning function, the GPS / BD module is connected with the core board module of the main control unit and a case, and the combiner is of a CP MD05-0278-3 type.

3. The wireless communication card of claim 1, wherein, The wireless communication plug-in further comprises a wired communication unit connected with a mother board and a front panel, the wired communication unit comprises an Ethernet interface, CAN communication, a transceiver and an I2C interface, the Ethernet interface led out by the core board module of the main control unit comprises a first-path 1000M Ethernet interface, a second-path 100M Ethernet interface and a third-path 100M Ethernet interface, the first-path 1000M Ethernet interface and the second-path 100M Ethernet interface are connected with the mother board, the third-path 100M Ethernet interface is connected with the front panel through an IP178 switch after extension, the other end of the third-path 100M Ethernet interface after the extension is connected with the mother board, the CAN communication is connected with the mother board, the transceiver is connected with the mother board, and the I2C interface is connected with the mother board.

4. The wireless communication card of claim 1, wherein, The wireless communication plug-in further comprises a USB unit and an ID unit, the USB unit is used for connecting the main control unit and a public network module, and the USB unit adopts a software-dedicated USB hub.

5. The wireless communication card of claim 1, wherein, ​ The ID unit is connected with the master control unit, and the ID unit comprises a core board module ID unit and a bottom plate ID unit.

6. The wireless communication card of claim 1, wherein, The wireless communication plug-in further comprises a maintenance circuit unit and a debugging port, the maintenance circuit unit adopts LTC2945 to measure inlet voltage current, the LTC2945 can be not welded, the maintenance circuit unit further comprises a duration recorder, and the duration recorder is of a DS1682 type; the debugging port is connected to a shell, and the debugging port uses an Ethernet interface of a wired communication unit in the wireless communication plug-in when performing network debugging.

7. The wireless communication card of claim 2, wherein, The wireless communication plug-in further comprises a control circuit unit, the control circuit unit is used for controlling power supply of a USB unit and a public network module in the USB unit, WLAN communication and a GPS / BD module in the wireless communication plug-in, and a watchdog is further arranged in the control circuit unit, and the watchdog is used for restarting the CPU processor when a fault occurs.

8. The wireless communication card of claim 1, wherein, The wireless communication plug-in further comprises an indicating lamp unit and an encryption unit, the indicating lamp unit is used for indicating a state of the wireless communication plug-in, and the encryption unit is provided with an encryption chip, the encryption chip is used for authenticating a circuit board, and the encryption chip is externally cooperated in a software form.

9. The wireless communication card of claim 1, wherein, The wireless communication plug-in further comprises a power supply unit, and the power supply unit selects a wide input range 9-36V isolation.

10. The wireless communication card of claim 1, wherein, The wireless communication plug-in further comprises an external interface isolation unit, the external interface isolation unit is provided with a magnetic bead and a TVS isolation device, high-voltage ceramic capacitors are arranged between the isolation devices, and the high-voltage ceramic capacitors are used for reducing radiation emission.

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