Outdoor CPE equipment and intelligent temperature control method

Abstract

The embodiment of the invention discloses outdoor CPE equipment and an intelligent temperature control method. According to one specific embodiment, the outdoor CPE equipment comprises a shell, a modified iron-doped nickel sulfide composite layer, a first metal cooling fin, a second metal cooling fin and a thermal interface material, a modified iron-doped nickel sulfide composite layer is attached to the inner wall of the shell, and a cooling fin shell is arranged outside the bottom of the shell. The first metal radiating fin is packaged in the shell and is mounted at the bottom of the shell; the second metal cooling fin is installed in the cooling fin shell on the outer side of the bottom of the shell, and the modified iron-doped nickel sulfide composite layer comprises an elastic base material and modified iron-doped nickel sulfide blocks. According to the embodiment, the thermal resistance can be changed according to the environment temperature when the outdoor CPE radiates heat outwards, and the comprehensive adaptive capacity of the outdoor CPE to the high-temperature environment and the low-temperature environment is improved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of communication equipment technology, specifically to outdoor CPE devices and intelligent temperature control methods. Background Technology

[0002] CPE (Customer Premise Equipment) is a type of customer-premises device used in the communications field. It converts signals from operators into standard Ethernet or Wi-Fi signals and provides network connectivity to multiple customer terminal devices simultaneously via wired or wireless means. In remote areas with weak signals, CPE devices can achieve stable signal connections through their more powerful signal transmitters and more antennas, providing a stable network for devices such as surveillance cameras. Since using CPEs to provide a network for deployed surveillance cameras eliminates the need for costly communication line installations, deploying surveillance near border crossings and in border areas with high smuggling risks, followed by CPE networking for anti-smuggling and anti-immigrant operations, has become a common method for ensuring border security and conducting anti-smuggling work. China has a vast territory with borders spanning various climates from tropical rainforests to high-altitude snow-capped mountains. Using CPE networking for video surveillance requires CPE equipment to maintain stable high performance regardless of whether it's in humid rainforests or sub-zero temperatures in high-altitude snow-capped mountains. Currently, existing outdoor CPE devices typically use metal or engineering plastic casings and employ integrated heat sinks for heat dissipation.

[0003] However, the following technical problems often arise when using the aforementioned outdoor CPE equipment: Since the thermal conductivity and thickness of the outer shell are fixed, the thermal resistance of existing outdoor CPE equipment remains constant when dissipating heat. It is impossible to adjust the thermal resistance of heat dissipation according to changes in ambient temperature. This results in the existing equipment being unable to achieve both heat dissipation at high temperatures and heat preservation at low temperatures. At the same time, the design of the overall heat sink will accelerate the loss of heat inside the equipment in low-temperature environments, leading to a decrease in the performance of the equipment in low-temperature environments. Therefore, existing outdoor CPE equipment cannot have stable high performance in both high-temperature and low-temperature environments. Summary of the Invention

[0004] The summary portion of this disclosure is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description portion. This summary portion is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] Some embodiments of this disclosure propose outdoor CPE devices and intelligent temperature control methods to solve one or more of the technical problems mentioned in the background section above.

[0006] In a first aspect, some embodiments of this disclosure provide an outdoor CPE device, comprising: a shell, a modified iron-doped nickel sulfide composite layer, a first metal heat sink, a second metal heat sink, and a thermal interface material; the shell has through holes, and the modified iron-doped nickel sulfide composite layer is attached to the inner wall of the shell; the first metal heat sink is encapsulated within the shell, and is installed at the bottom of the shell, and is in sealed contact with the modified iron-doped nickel sulfide composite layer attached to the inner wall of the shell through the thermal interface material; the second metal heat sink is installed on the outer side of the bottom of the shell, and is in sealed contact with the outer wall of the shell through the thermal interface material; the modified iron-doped nickel sulfide composite layer comprises an elastic substrate and various modified iron-doped nickel sulfide blocks, the various modified iron-doped nickel sulfide blocks being embedded in the elastic substrate; and gaps exist between each of the various modified iron-doped nickel sulfide blocks.

[0007] Optionally, the thermal interface material of the aforementioned outdoor CPE equipment includes thermally conductive gel, thermally conductive adhesive, and thermally conductive silicone pad.

[0008] Optionally, the outdoor CPE equipment further includes: a cooling fan; a heat sink cover is formed on the bottom outer side of the housing, and the second metal heat sink is located inside the heat sink cover; the cooling fan is installed inside the heat sink cover and located below the second metal heat sink to accelerate the heat dissipation of the second metal heat sink.

[0009] Optionally, the aforementioned outdoor CPE equipment further includes a printed circuit board: an active heating device, a temperature sensor, and a control device are mounted on the printed circuit board. The active heating device is connected to the control device, and the control device is connected to the temperature sensor. Before startup, the control device detects the internal temperature of the equipment using the temperature sensor. If the internal temperature is lower than a preset temperature, the control device controls the active heating device to heat the printed circuit board to the preset temperature. The active heating device, controlled by the control device, generates heat to raise the internal temperature of the equipment.

[0010] Optionally, the aforementioned outdoor CPE device further includes a thermoelectric cooling element; one side of the thermoelectric cooling element is a cooling surface, and the other side is a heating surface; the thermoelectric cooling element is connected to the aforementioned printed circuit board; the heating surface of the thermoelectric cooling element is in sealed contact with the bonding surface of the aforementioned second heat sink through a thermal interface material, and the cooling surface is in sealed contact with the outer surface of the aforementioned housing through a thermal interface material.

[0011] Optionally, the aforementioned outdoor CPE device further includes function keys and a main control chip; the aforementioned control device is configured to perform the following control steps: in response to receiving a power-on signal sent by the aforementioned function key, acquiring current device temperature data through the aforementioned temperature sensor; in response to determining that the temperature represented by the current device temperature data is higher than a preset lower limit start-up temperature, sending a power-on command to the aforementioned control module; in response to determining that the temperature represented by the current device temperature data is lower than the preset lower limit start-up temperature, activating the active heating device; in response to determining that the active heating device is activated, acquiring current device temperature data through the aforementioned temperature sensor at preset time intervals; in response to determining that the temperature represented by the current device temperature data is higher than the preset lower limit start-up temperature, deactivating the aforementioned active heating device and sending a power-on command to the aforementioned main control chip.

[0012] Secondly, some embodiments of this disclosure provide an intelligent temperature control method applied to the main control chip included in the aforementioned outdoor CPE device. The method includes: obtaining the current time; and based on the current time, performing the following control steps: obtaining real-time operating status data of the outdoor CPE device, wherein the real-time operating status data includes its own temperature data, its own frequency level data, heat sink temperature and ambient temperature, network traffic data, main control chip utilization rate, fan speed, and real-time power consumption data obtained through the power supply module; determining a preset duration before the current time as a sampling window, obtaining historical temperature control action information of the sampling window as historical temperature control data, preprocessing and normalizing the real-time operating status data to obtain standardized status data; and preprocessing and normalizing the historical temperature control data to obtain standard historical temperature control data. The standardized state data and standard historical temperature control data are spliced ​​together to obtain a temperature control data sequence. This temperature control data sequence is then input into a pre-trained temperature control decision model to obtain temperature control action command information. Based on this temperature control action command information, the operation of the fan, thermoelectric cooling element, and active heating device is controlled to keep the temperature of the main control chip within a preset temperature range. After a preset time interval following the current time, the current time is retrieved again, and the above control steps are executed again based on the retrieved current time.

[0013] Optionally, the above-mentioned intelligent temperature control method, wherein controlling the operation of the fan, thermoelectric cooler, and active heating device based on the temperature control action command information to control the temperature of the control module within a preset temperature range includes: decoding the temperature control action command information to obtain fan operating power level, thermoelectric cooler operating power level information, and active heating device operating power level information; adjusting the fan operating power level to the aforementioned fan operating power level; controlling the operation of the power supply module based on the thermoelectric cooler operating power level information to adjust the thermoelectric cooler operating power level to the operating power level corresponding to the aforementioned thermoelectric cooler operating power level information; and controlling the operation of the power supply module based on the active heating device operating power level information to adjust the active heating device operating power level to the operating power level corresponding to the aforementioned active heating device operating power level information.

[0014] The above-described embodiments of this disclosure have the following beneficial effects: The outdoor CPE devices of some embodiments of this disclosure achieve stable high-performance performance in both high-temperature and low-temperature environments. Specifically, the reason why outdoor CPE devices cannot achieve stable high-performance performance in both high-temperature and low-temperature environments is that, due to the fixed thermal conductivity and thickness of the outer shell, the thermal resistance of existing outdoor CPE devices remains constant when dissipating heat, and cannot be adjusted according to changes in ambient temperature. This results in existing devices being unable to simultaneously achieve heat dissipation at high temperatures and heat preservation at low temperatures. Furthermore, the overall heat sink design accelerates heat loss within the device in low-temperature environments, leading to reduced performance. Therefore, existing outdoor CPE devices cannot achieve stable high-performance performance in both high-temperature and low-temperature environments. Based on this, the outdoor CPE devices of some embodiments of this disclosure include: an outer shell, a modified iron-doped nickel sulfide composite layer, a first metal heat sink, a second metal heat sink, and a thermal interface material. The outer shell has through holes, and the modified iron-doped nickel sulfide composite layer is attached to the inner wall of the outer shell. The first metal heat sink is encapsulated within a housing and mounted on the bottom of the housing, forming a sealed contact with the modified iron-doped nickel sulfide composite layer attached to the inner wall of the housing via the aforementioned thermal interface material. The second metal heat sink is mounted on the outer side of the bottom of the housing and forms a sealed contact with the outer wall of the housing via the thermal interface material. The modified iron-doped nickel sulfide composite layer comprises an elastic substrate and individual modified iron-doped nickel sulfide blocks, which are embedded in the elastic substrate. Gaps exist between each of the modified iron-doped nickel sulfide blocks. Because the thermal conductivity of modified iron-doped nickel sulfide material changes with temperature—lower at low temperatures and higher at high temperatures—a modified iron-doped nickel sulfide composite layer with adjustable thermal conductivity for both high and low temperature environments can be created. This composite layer is then bonded to the inner wall of the outdoor CPE equipment's casing. This allows for adjustment of the thermal resistance of the internal components to the outside based on ambient temperature, balancing heat dissipation at high temperatures and insulation at low temperatures. Furthermore, by dividing the heat sink into two parts—one inside the casing and the other outside—the problem of excessive heat loss at low temperatures when using a single heat sink is solved, ensuring stable high performance for the outdoor CPE equipment in both high and low temperature environments. Attached Figure Description

[0015] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and elements are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the enclosure of the outdoor CPE device disclosed herein during testing; Figure 2 These are schematic diagrams illustrating the structure of some embodiments of outdoor CPE devices according to this disclosure; Figure 3 This is a flowchart of some embodiments suitable for implementing the intelligent temperature control method of this disclosure. Detailed Implementation

[0017] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0018] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0019] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0020] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0021] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0022] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Please see first. Figure 1 , Figure 1 A schematic diagram of the enclosure of the outdoor CPE device disclosed herein is shown during testing.

[0024] The following is for reference. Figure 2 , Figure 2 A schematic diagram of the internal structure of some embodiments of the outdoor CPE device disclosed herein is shown.

[0025] The aforementioned outdoor CPE equipment includes: a shell 1, a modified iron-doped nickel sulfide composite layer 2, a first metal heat sink 3, a second metal heat sink 4, and a thermal interface material 5. The first metal heat sink 3 can be made of copper or aluminum and is used for heat dissipation. The second metal heat sink 4 can also be made of copper or aluminum. The thermal interface material 5 can be thermally conductive grease, thermally conductive gel, thermally conductive silicone pad, thermally conductive adhesive, etc. The modified iron-doped nickel sulfide composite layer 2 is attached to the inner wall of the shell 1. The modified iron-doped nickel sulfide composite layer 2 can be attached to any surface of the inner wall of the shell 1, or any one or several surfaces of the inner wall of the shell 1. The first metal heat sink 3 is encapsulated within the shell 1 and is installed at the bottom of the shell 1, and is in sealed contact with the modified iron-doped nickel sulfide composite layer 2 attached to the inner wall of the shell 1 through the thermal interface material 5. The first metal heat sink 3 can achieve a sealed contact with the modified iron-doped nickel sulfide composite layer 2 attached to the inner wall of the outer casing 1 by applying thermal grease or thermal gel and pressing the surface with the grease or gel against the layer. The pressing method can be using bolts, clips, or thermally conductive adhesive. The second metal heat sink 4 is installed on the outer bottom of the outer casing 1 and makes a sealed contact with the outer wall of the outer casing 1 through a thermal interface material 5. The second metal heat sink 4 can also achieve a sealed contact with the modified iron-doped nickel sulfide composite layer 2 attached to the inner wall of the outer casing 1 by applying thermal grease or thermal gel and pressing the surface with the grease or gel against the layer. The pressing method can be using bolts or clips. The modified iron-doped nickel sulfide composite layer 2 comprises an elastic substrate and individual modified iron-doped nickel sulfide blocks, which are embedded in the elastic substrate. The elastic substrate can be made of a flexible, elastic material with good tensile properties, serving as a soft sheet for mounting and fixing the modified iron-doped nickel sulfide blocks. Examples of such flexible materials include silicone or polydimethylsiloxane. Gaps exist between each of the modified iron-doped nickel sulfide blocks. The thickness of each modified iron-doped nickel sulfide block can be 5 mm, and the thickness can be adjusted according to the requirements of the actual application. The thermal conductivity of the modified iron-doped nickel sulfide blocks increases when the temperature rises and exceeds a preset value, enabling heat management in response to different ambient temperatures. For example, at around 0 degrees Celsius, the thermal conductivity of the modified iron-doped nickel sulfide blocks is approximately 3 WK. -1 m -1 At a temperature of around 40 degrees Celsius, the thermal conductivity of the modified iron-doped nickel sulfide block is approximately 13 WK. -1 m -1The aforementioned modified iron-doped nickel sulfide block can be composed of a binder, iron, and hexagonal nickel sulfide, wherein the nominal composition of the iron-doped hexagonal nickel sulfide is: Ni 1-x Fe x S, where the subscript "1-x" in Ni and the subscript "x" in Fe are the same variable, with a value range of x = 0.125~0.175; the binder is silver, accounting for 5%~10% of the total mass; the elastic substrate is a sheet made of elastic material; the modified iron-doped nickel sulfide blocks are bonded to the surface of the elastic substrate or to the through holes or pores in the elastic substrate, and there are gaps between the modified iron-doped nickel sulfide blocks. Modification is a method of changing the morphology or properties of a material through physical or chemical means. The modified iron-doped nickel sulfide blocks are modified material blocks made with iron-doped hexagonal nickel sulfide as the matrix phase (the matrix phase is a component of the continuous phase in a multiphase material, which plays a role in maintaining the continuity of the overall structure and functional bearing) and silver binder as the reinforcing phase (the reinforcing phase is a component in a composite material that is dispersed in the matrix phase in an independent form and can significantly improve the mechanical properties of the material). The volume of the voids between the modified iron-doped nickel sulfide blocks is 1% to 8% of the total volume of the modified iron-doped nickel sulfide blocks. The presence of gaps between these small modified iron-doped nickel sulfide blocks is to prevent them from squeezing each other due to thermal expansion in high-temperature environments. However, too many voids would affect the effectiveness of adjusting the thermal resistance of the CPE when dissipating heat outward through changes in its own thermal conductivity. Therefore, a void ratio of 1% to 8% is preferred.

[0026] Optionally, the thermal interface material 5 of the aforementioned outdoor CPE equipment includes thermally conductive gel, thermally conductive adhesive, and thermally conductive silicone pad.

[0027] Optionally, the aforementioned outdoor CPE equipment further includes: a cooling fan; a heat sink cover is formed on the bottom outer side of the aforementioned housing 1, and the aforementioned second metal heat sink 4 is located inside the heat sink cover. The aforementioned cooling fan is installed inside the heat sink cover, located below the second metal heat sink 4, to accelerate the heat dissipation of the second metal heat sink 4.

[0028] Optionally, the aforementioned outdoor CPE equipment also includes a printed circuit board: the printed circuit board is further equipped with an active heating device, a temperature sensor, and a control device. The active heating device is connected to the control device, and the control device is connected to the temperature sensor. The control device can be a module consisting of an MCU (Microcontroller Unit) and a drive circuit (e.g., a load driver BTS716GT) for driving the active heating device. The MCU directly controls the load driver to output current and voltage to the active heating device via GPIO pins and controls the activation and deactivation of the active heating device. The temperature sensor can be a sensor for measuring the temperature inside the equipment (e.g., a TMP112). The active heating device can be one or more resistors arranged on the printed circuit board, or a flexible heating film (e.g., a graphene heating film, a silicone heating film, or other flexible heating devices) or other heat-generating devices. The control device detects the temperature inside the equipment before activation using the temperature sensor. If the temperature inside the equipment is lower than a preset temperature, the control device controls the active heating device to heat the printed circuit board to the preset temperature. The active heating device, controlled by the control module, generates heat to raise the temperature inside the equipment.

[0029] Optionally, the aforementioned outdoor CPE equipment further includes a thermoelectric cooler (also known as a semiconductor cooler); one side of the thermoelectric cooler is a cooling surface (i.e., the surface whose temperature decreases when energized), and the other side is a heating surface (the surface whose temperature increases when energized). The thermoelectric cooler is connected to the aforementioned printed circuit board. The connection method can be via a ribbon cable or a lead wire. The heating surface of the thermoelectric cooler is in sealed contact with the contact surface of the second heat sink (the contact surface refers to the surface of the heat sink that is in contact with the device requiring heat dissipation) through a thermal interface material 5, and the cooling surface is in sealed contact with the outer surface of the outer casing 1 through the thermal interface material 5. Using a thermoelectric cooler can further accelerate heat dissipation.

[0030] In addressing the aforementioned technical problems using technical solutions, this solution is applied to the following scenario: When using CPE devices for networking in complex outdoor environments, especially near borders, the CPE devices are used by border troops, customs, or anti-smuggling units. These devices store confidential information such as network configuration data, network access credentials, and temporary session data. To protect this confidential information, even if the device is damaged or stolen, resulting in a power outage, it must be recoverable. However, existing outdoor CPE devices often suffer from the following technical problems: They typically do not have internal batteries and rely on external power. If stolen or damaged, causing a power outage, the device will be unable to transmit any information. Furthermore, due to the high signal transmission power and processor power of CPE devices, the battery life of backup batteries is too short, making it difficult to locate existing outdoor CPE devices after damage or theft leading to a power outage. The following requirements are necessary for this application scenario: It should be suitable for networking CPE devices near border lines; the outdoor CPE devices need to be able to locate and report their position even when the external power is disconnected; and they need sufficient battery life for retrieval and recovery. To address these technical challenges, we have decided to adopt the following solution: The aforementioned outdoor CPE device also includes a communication module and a power supply module: the communication module is located on the aforementioned printed circuit board. This communication module can be a cellular network module, a 4G / 5G module, etc., and may include an antenna paired with the cellular network module or 4G / 5G module to realize the communication function of the CPE device. The power supply module is connected to the printed circuit board and is used to supply power to the aforementioned outdoor CPE device. This power supply module can be a module for receiving external power input to power the aforementioned outdoor CPE device (e.g., PM8805TR or PF81 / PF82PMIC, etc.). The aforementioned printed circuit board also includes a power failure positioning device: the power failure positioning device includes a backup low-power control module, a backup power supply module, a positioning module, and a load switch. The power failure positioning device is connected to the aforementioned printed circuit board. The backup low-power control module is connected to the communication module on the printed circuit board through the load switch. The positioning device is connected to the backup low-power control module, and the backup power supply module is connected to the backup low-power control module. The aforementioned backup low-power control module can be an MCU (such as the STM32L4 series or similar products) designed for low-power requirements. The aforementioned backup power supply module can be a power supply module composed of a backup battery, a PMIC (Power Management Integrated Circuit), and an energy storage capacitor to achieve seamless power switching, or it can be a module composed of logic gate circuits, diodes or MOSFETs, capacitors, and a backup battery to achieve seamless power switching. The backup battery serves as a backup power source, the PMIC performs the power switching operation, and the capacitor stores energy to achieve seamless switching by releasing the stored charge at the moment of power switching. The aforementioned load switch can be used to activate the aforementioned communication module when information needs to be sent externally. The backup power supply module is configured to seamlessly take over the power supply of the aforementioned power failure positioning device in response to the detection of a power failure in the aforementioned power supply module, so that the power failure positioning device can continue to operate even when the main power supply of the aforementioned outdoor CPE equipment is disconnected. The backup low-power control module included in the aforementioned power failure positioning device is configured to perform the following steps: in response to the detection of a power failure in the aforementioned power supply module, control the communication module to send a preset warning message to the user terminal, and then control the load switch to shut down the aforementioned communication module and enter sleep mode. Entering sleep mode is to conserve power and maximize battery life after a power outage. Upon reaching a preset sleep mode duration, the following location reporting steps are executed: exiting sleep mode, the aforementioned positioning module acquires the current location information. This positioning module can be a GNSS module (Global Navigation Satellite System). The method for acquiring the current location information can be that the positioning module receives navigation messages from the Global Navigation Satellite System, measures the pseudorange and carrier phase, and calculates the device's current location and geographic coordinates based on the pseudorange and carrier phase using a positioning algorithm.The load switch is controlled to turn on the communication module, allowing the communication module to send the current location information to the user terminal. Upon confirmation that the current location information transmission is complete, the load switch is controlled to turn off the communication module and enter sleep mode to conserve power. Upon confirmation that the preset sleep mode duration has been reached, the location reporting steps are executed again.

[0031] The above-described technical solution and its related content, as an inventive point of this disclosure, solve the technical problem that "CPE devices cannot send information when the external power is disconnected, and the backup battery's battery life is too short due to high power consumption." Factors that make it difficult to locate existing outdoor CPE devices after damage or theft and disconnection of external power are often as follows: Existing CPE devices typically do not have internal batteries and rely on external power. Once stolen or damaged, resulting in a disconnection of external power, existing devices will be unable to send any information. Furthermore, due to the high signal transmission power and processor power of CPE devices, the battery life of backup batteries is too short, making it difficult to locate existing outdoor CPE devices after damage or theft and disconnection of external power. If these factors are resolved, outdoor CPE devices can still locate and report their position even when the external power is disconnected, and have sufficient battery life for retrieval and recovery. To achieve the above effects, the outdoor CPE equipment also includes a power failure positioning device. This device includes a backup low-power control module, a backup power supply module, a positioning module, and a load switch, all corresponding to the control module. The power failure positioning device is connected to the printed circuit board. The backup low-power control module is connected to a communication module on the printed circuit board via the load switch. The backup power supply module is configured to seamlessly take over the power supply to the power failure positioning device in response to a detected power failure in the power supply module. The backup low-power control module is configured to perform the following steps: in response to a detected power failure in the power supply module, control the communication module to send a preset warning message to the user terminal, then control the load switch to shut down the communication module and enter sleep mode; in response to a preset sleep mode duration, perform the following location reporting steps: exit sleep mode and control the positioning module to obtain current location information; control the load switch to open the communication module so that the communication module can send the current location information to the user terminal; in response to confirming that the current location information has been sent, control the load switch to shut down the communication module and enter sleep mode; in response to confirming that a preset sleep mode duration has been reached, perform the location reporting steps again. This allows for periodic sleep mode and location reporting, reducing power consumption. Furthermore, by adding a backup power supply module, the problem of the existing device being unable to send any information when the external power is disconnected is solved. The low-power control module and the program-based periodic sleep mode further conserve power, ensuring sufficient battery life for retrieval and recovery. This achieves the goal of enabling outdoor CPE devices to locate and report their position even when the external power is disconnected, with sufficient battery life for retrieval and recovery.

[0032] Most existing CPE devices require an external power source to function properly; a power outage means complete shutdown, rendering them unable to receive or transmit any information. Currently, the market generally avoids equipping CPE devices with built-in batteries because their high power consumption necessitates a bulky battery to support 24-hour operation. For example, the Fiberhome 5GCPE consumes approximately 24W at full power, requiring about 576Wh of energy for 24 hours of operation. If powered by a battery for 24 hours, the 0.6kg Fiberhome 5GCPE would require a 4kg lithium battery, severely impacting user experience. Given that CPE applications often require extended operation, the market has largely abandoned battery installation for CPE devices. This solution utilizes a backup low-power control module and a backup battery to enable the CPE device to transmit location data even during a power outage.

[0033] In addressing the aforementioned technical problems using technical solutions, and considering the application scenario of this solution—where outdoor CPE devices are damaged or stolen in complex outdoor environments, especially near borders—the following technical challenges arise when using satellite positioning via a positioning module for retrieval and recovery: The complex environment near borders, coupled with the significant satellite positioning error range due to trees or mountains obstructing the view, limits the search to the satellite positioning range, hindering the rapid locating of CPE devices in complex environments. This prolonged search time increases the safety risks to personnel and the risk of equipment loss. Therefore, this application scenario requires the following characteristics: suitability for retrieval and recovery of damaged or stolen outdoor CPE devices; and the ability to quickly locate the devices in complex environments. Faced with these technical challenges, we have decided to adopt the following solution: The aforementioned power failure positioning device also includes a proximity positioning device: the proximity positioning device is connected to the aforementioned backup low-power control module. After the power supply module is powered off, the proximity positioning device is configured to broadcast a preset broadcast data packet at a first preset frequency. The proximity positioning device is further configured to, in response to determining that a scan request has been received, send a wake-up signal to the aforementioned backup low-power control module to wake up the backup low-power control module. The wake-up method may be sending a high-level or low-level signal to the aforementioned backup low-power control module. The aforementioned backup low-power control module is configured to perform the following steps: in response to receiving the wake-up signal, establish a pairing connection with the device that issued the scan request. In response to successful pairing, a broadcast data packet is sent to the device that initiated the scanning request at a second preset frequency. The device initiating the scanning request determines the position of the outdoor CPE relative to itself based on the angle and strength of the received signal. This determination can be achieved using an RSSI (Received Signal Strength Indicator) weighted centroid positioning algorithm to calculate the approximate distance, or using an AOA (Angle of Arrival) positioning algorithm to calculate the angle of the outdoor CPE relative to the device initiating the scanning request, based on the angle of the received signal. In response to the detection of power restoration from the power supply module, the proximity positioning device is shut down and enters sleep mode. For example, the proximity positioning device can be a Bluetooth chip supporting AoA / AoD technology, the broadcast data packet can be a Bluetooth broadcast message, and the device initiating the scanning request can be a mobile phone, smartwatch, etc. The device initiating the scanning request can calculate the approximate distance to the outdoor CPE using RSSI ranging, or confirm the orientation of the outdoor CPE relative to the device initiating the scanning request using an antenna array and AoA positioning. Near-field positioning devices can also be modules equipped with UWB chips. The device issuing the scanning request obtains the relative distance to the aforementioned outdoor CPE devices through UWB (Ultra Wideband) positioning technology. For low-power Bluetooth chips, broadcast power consumption depends on the broadcast frequency. The broadcast frequency can be set lower to achieve longer battery life. For example, when broadcasting once per second, the peak current of a single broadcast by a Bluetooth chip (taking GR5526 as an example) is 4.8mA. Estimating power consumption based on a single broadcast event duration of 1.2ms, and considering that there is a 3ms connection event every ten broadcasts, its power consumption for 15 days of operation is approximately 5mAh, which has almost no impact on the overall battery life.

[0034] The above-described technical solution and its related content, as an inventive point of this disclosure, solve the technical problem of "the inability to quickly locate outdoor CPE devices in complex environments, while prolonged search times increase personnel safety risks and the risk of equipment loss." Factors that prevent the rapid locating of outdoor CPE devices in complex environments often include: complex environments near borders; and large satellite positioning errors due to tree or mountain obstructions, limiting searches to the satellite positioning range and preventing rapid locating of outdoor CPE devices in complex environments. Prolonged search times increase personnel safety risks and the risk of equipment loss. Solving these factors enables the rapid locating of outdoor CPE devices in complex environments. To achieve the above effects, the aforementioned power outage beacon module also includes a proximity positioning device: the proximity positioning device is connected to the backup low-power control module; after the power supply module loses power, the proximity positioning device is configured to broadcast a preset broadcast data packet at a first preset frequency; the proximity positioning device is further configured to, in response to receiving a scan request, send a wake-up signal to the backup low-power control module to wake it up; the backup low-power control module is configured to perform the following steps: in response to receiving the wake-up signal, establish a pairing connection with the device that issued the scan request; in response to confirming successful pairing, send a broadcast data packet to the device that issued the scan request at a second preset frequency, wherein the device that issued the scan request calculates the distance between itself and the outdoor CPE device by calling a preset program based on the angle and strength of the received signal; in response to detecting the restoration of power supply from the power supply module, shut down the proximity positioning device and enter a sleep mode. Because the proximity positioning device broadcasts data packets, allowing the user's device to confirm the position of the outdoor CPE device relative to the user based on the strength and angle of the received signal, it facilitates the user's quick location of the outdoor CPE device, achieving the effect of quickly locating the outdoor CPE device in complex environments. In addressing the aforementioned technical problems using this technical solution, considering the application scenario of outdoor CPE devices in complex outdoor environments, especially near borders, where damage or theft necessitates retrieval and recovery, the following technical issues often arise: After damage or theft, outdoor CPE devices may be taken by criminals. In this situation, the CPE device will be constantly moving. However, existing outdoor CPE devices, considering the battery life of backup power modules, typically employ periodic sleep and location reporting (e.g., reporting every few hours). This results in the inability to update the location in a timely manner when the outdoor CPE device is moved, making retrieval and recovery difficult. Therefore, this application scenario requires the following characteristics: It should be suitable for retrieval and recovery of stolen outdoor CPE devices; the outdoor CPE device should be able to identify its movement status and update its location promptly upon detecting movement for retrieval.Faced with the above technical problems, we have decided to adopt the following solution: The aforementioned power-off positioning device also includes an attitude sensor (e.g., an LSM6DSO32X type attitude sensor) connected to the aforementioned backup low-power control module. The attitude sensor can detect the acceleration of the outdoor CPE device via a built-in accelerometer. The attitude sensor is configured to perform the following steps: using the built-in accelerometer to detect the acceleration of the outdoor CPE device and obtain acceleration data. The step of obtaining acceleration data may include: detecting the acceleration of the outdoor CPE device at a preset sampling frequency (e.g., 208Hz), obtaining three-dimensional vectors of the acceleration magnitudes in the X, Y, and Z directions at each sampling time; calculating the vector amplitude for each vector to obtain the resultant acceleration of the outdoor CPE device corresponding to each three-dimensional vector; and collecting the set of resultant accelerations of the outdoor CPE device corresponding to all three-dimensional vectors within a preset sampling time (e.g., within 10 seconds) to obtain the acceleration data. In response to the determination that the resultant acceleration of the outdoor CPE device represented by the acceleration data exceeds a preset value and exceeds the preset value for a preset time, vibration frequency analysis is performed on the acceleration data. The vibration frequency analysis described above can be performed by sorting the combined acceleration of all three-dimensional vectors corresponding to the outdoor CPE device within a preset time period contained in the acceleration data according to the sampling order, obtaining a combined acceleration-time waveform, smoothing the combined acceleration-time waveform using a low-pass filter, and then using a peak detection algorithm to obtain the number of peaks in the combined acceleration-time waveform. Based on the number of peaks and the length of the preset sampling time, the frequency of peak occurrence can be calculated, and the frequency of peak occurrence is confirmed as the vibration frequency represented by the acceleration data. In response to determining that the vibration frequency represented by the acceleration data is within a preset frequency range, a wake-up signal is sent to the backup low-power control module. The wake-up signal can be a signal output from a pin to trigger an interrupt, which can wake up the MCU that is in sleep mode using the WFI instruction. The preset frequency range can be a frequency range that conforms to the stride frequency range of a person walking, for example, the preset frequency range can be 1Hz to 3.5Hz. Vibration frequencies falling within this range indicate that the device is being carried and moved by a person. The backup low-power control module is configured to, in response to receiving the wake-up signal from the attitude sensor, exit sleep mode and perform the following real-time positioning steps: obtain the current time. The current location information is obtained through the aforementioned positioning module. The aforementioned load switch is controlled to turn on the aforementioned communication module, so that the communication module can send the aforementioned current location information to the user terminal. After a preset time interval following the current time, the current time is obtained again, and the aforementioned real-time positioning steps are executed again based on the obtained current time.

[0035] The above-described technical solution and its related content, as an inventive point of this disclosure, solve the technical problem that "existing outdoor CPE devices, due to considerations of backup power module endurance, typically employ periodic sleep and periodic location reporting (e.g., reporting every few hours), resulting in the inability to update the location in a timely manner when the outdoor CPE device is moved, making it difficult to find and retrieve." The factors that cause outdoor CPE devices to fail to update their location in a timely manner and become difficult to find and retrieve are often as follows: After outdoor CPE devices are damaged or stolen, they may be taken away by criminals. In this situation, the CPE device will continue to move, and existing outdoor CPE devices, due to considerations of backup power module endurance, typically employ periodic sleep and periodic location reporting (e.g., reporting every few hours), resulting in the inability to update the location in a timely manner when the outdoor CPE device is moved, making it difficult to find and retrieve. If these factors are resolved, the effect of timely location updates when outdoor CPE devices are moved can be achieved, facilitating finding and retrieval. To achieve this effect, the aforementioned power-off positioning device also includes an attitude sensor. The attitude sensor is configured to perform the following steps: using an accelerometer built into the attitude sensor to detect the acceleration of the outdoor CPE device and obtain acceleration data. In response to determining that the combined acceleration of the outdoor CPE device, as represented by the acceleration data, exceeds a preset value and exceeds the preset value for a preset time, vibration frequency analysis is performed on the acceleration data. In response to determining that the vibration frequency represented by the acceleration data is within a preset frequency range, a wake-up signal is sent to the aforementioned backup low-power control module. The aforementioned backup low-power control module is configured to, in response to receiving the wake-up signal from the attitude sensor, exit sleep mode and perform the following real-time positioning steps: acquiring the current time; acquiring the current location information through the positioning module; controlling the load switch to open the communication module so that the communication module can send the current location information to the user terminal; acquiring the current time again after a preset time interval following the current time, and performing the aforementioned real-time positioning steps again based on the acquired current time. Because the outdoor CPE device can recognize the movement status of the device through the attitude sensor, when the movement of the outdoor CPE device is detected, the aforementioned backup low-power control module can be woken up in time to update the position, thus achieving the effect of timely position update when the outdoor CPE device is moved, which facilitates retrieval and recovery.

[0036] Optionally, the aforementioned outdoor CPE device further includes function keys and a main control chip. The function keys are connected to the control device, and the main control chip is located on the printed circuit board and connected to the control device. The function keys can be switches or buttons, and the main control chip can be a System-on-Chip (SoC) with integrated power management integrated circuits or a combination of an SoC and a power management integrated circuit. The control device is configured to perform the following control steps: in response to receiving a power-on signal from the function keys, it acquires the current device temperature data through the temperature sensor. The current device temperature data can be read directly from the temperature sensor using an I2C bus (e.g., when using a TMP112 as the temperature sensor); in response to determining that the temperature represented by the current device temperature data is higher than a preset lower limit startup temperature (e.g., higher than 0 degrees Celsius), it sends a power-on command to the control module. The power-on command can be sent as a low-level signal. The control module outputs a low-level signal via GPIO to the power management integrated circuit (IC) responsible for powering the main control chip. Upon receiving the power-on signal, the IC executes the power-on program to start the main control chip and power on the device. In response to determining that the temperature represented by the current device temperature data is lower than a preset lower limit start-up temperature (e.g., below 0 degrees Celsius), the active heating device is activated. Alternatively, when the control device consists of an MCU and a load driver, the MCU can directly control the load driver (e.g., BTS716GT) to output current and voltage to the active heating device via GPIO pins, controlling its activation and deactivation. In response to determining that the active heating device is activated, the current device temperature data is acquired via the temperature sensor at preset time intervals. In response to determining that the temperature represented by the current device temperature data is higher than the preset lower limit start-up temperature, the active heating device is deactivated, and a power-on command is sent to the main control chip.

[0037] The following is for reference. Figure 3 , Figure 3 A flow 200 is shown illustrating some embodiments of a smart temperature control method for outdoor CPE equipment according to the present disclosure. The smart temperature control method includes the following steps: Step 201: Get the current time.

[0038] In some embodiments, the executor of the current intelligent temperature control method (e.g., the main control chip on the printed circuit board of the outdoor CPE device mentioned above) can obtain the current time through the communication module based on the Network Time Protocol (NTP) or through over-the-air time synchronization.

[0039] Step 202, based on the current time, perform the following control steps: Step 2021: Obtain real-time operating status data of outdoor CPE equipment; In some embodiments, the aforementioned real-time operating status data includes its own temperature data, its own frequency level data, heat sink temperature and ambient temperature, network traffic data, control module utilization rate, fan speed, and real-time power consumption data obtained through the power supply module. The executing entity can obtain the aforementioned control module temperature data, control module frequency level data, heat sink temperature and ambient temperature, network traffic data, main control chip utilization rate, fan speed, and real-time power consumption data obtained through the power supply module by reading system files, obtaining information sent by sensors, etc. Specifically, the control module temperature data includes the current temperature of the control module's main control core; the control module frequency level data includes the frequency level of the control module's main control core; the heat sink temperature includes the current temperature of the second heat sink; the ambient temperature includes the current ambient temperature; the network traffic data includes the current network traffic usage; the control module utilization rate includes the current utilization rate of the control module's main control core; the fan speed includes the current fan speed; and the real-time power consumption data includes the power consumption levels of the current control module, thermoelectric cooler, fan, and active heating device. The aforementioned real-time operating status data includes its own temperature data, its own frequency level data, heat sink temperature and ambient temperature, network traffic data, control module utilization rate, fan speed, and real-time power consumption data obtained through the power supply module. Step 2022: Confirm the preset duration before the current time as the sampling window, and obtain the historical temperature control action information of the sampling window as historical temperature control data; In some embodiments, the aforementioned execution entity can obtain the historical temperature control action information by reading logs. These logs may be system operation logs stored in non-volatile memory, recording real-time operating status data of the outdoor CPE device at various points in time and temperature control actions performed by the CPE device at preset time intervals. The historical temperature control action information includes sequences of fan operating power data changing over time, sequences of active heating device operating power data changing over time, sequences of thermoelectric cooling chip operating power data changing over time, sequences of control module frequency levels changing over time, and sequences of temperature data changing over time within the time period corresponding to the sampling window.

[0040] Step 2023: Preprocess and normalize the real-time operating status data to obtain standard status data; In some embodiments, the aforementioned execution entity can perform preprocessing by removing outliers, performing bar-strip interpolation, linear interpolation, feature engineering, etc., and normalize by methods such as linear function normalization, wherein the normalization process may also include standardization methods such as Robust standardization and Z-Score standardization.

[0041] Step 2024: Preprocess and normalize the historical temperature control data to obtain standard historical temperature control data.

[0042] In some embodiments, the aforementioned execution entity can perform preprocessing by removing outliers, performing bar-strip interpolation, linear interpolation, feature engineering, etc., and normalize by methods such as linear function normalization, wherein the normalization process may also include standardization methods such as Robust standardization and Z-Score standardization.

[0043] Step 2025: Input the standard state data and standard historical temperature control data into the pre-trained temperature control decision model to obtain temperature control action command information.

[0044] In some optional implementations of certain embodiments, the aforementioned execution entity can input the aforementioned standard state data and the aforementioned standard historical temperature control data into a pre-trained temperature control decision model through the following steps to obtain temperature control action command information: The first step involves concatenating the standardized status data and standard historical temperature control data of the CPE equipment to obtain a temperature control data sequence. This temperature control data sequence is then input into the LSTM encoding layer of a pre-trained temperature control decision model to obtain an encoded feature vector of the temperature control data sequence. This encoded feature vector corresponds to the temperature control data sequence itself. The pre-trained temperature control decision model can be a neural network model that takes the temperature control data sequence (obtained by concatenating the standard status data and standard historical temperature control data of the outdoor CPE equipment) as input and temperature control action command information as output. For example, this neural network model can be an LSTM (Long Short Term Memory) network model. The LSTM encoding layer can be an encoding layer that takes the temperature control data sequence as input and outputs the encoded feature vector of the temperature control data sequence. The feature vector of the temperature control data sequence can represent feature vectors representing historical temperature control data and real-time operating status data.

[0045] The second step is to input the encoded temperature control data sequence feature vector into the future state prediction layer (which can be a fully connected layer) of the pre-trained temperature control decision model to obtain the nonlinear feature information corresponding to the encoded temperature control data sequence feature vector. The fully connected layer can be used to obtain the nonlinear feature information that characterizes the change pattern of the encoded temperature control data sequence feature vector.

[0046] The third step is to input the aforementioned nonlinear feature information into the output layer of the pre-trained temperature control decision model to obtain temperature change prediction information. The temperature change prediction information can be a feature vector containing the temperature change prediction results of the output layer of the temperature control decision model.

[0047] The fourth step involves concatenating the temperature change prediction information and the encoded temperature control data sequence feature vector to obtain temperature control decision data. This decision data is then input into a pre-trained decision layer (which can be a fully connected layer) to obtain temperature control action command information corresponding to the decision data. This decision layer is used to determine the most suitable temperature control action based on the decision data, thereby obtaining temperature control action command information containing the operating power levels of each temperature control component. This temperature control action command information can be a vector, where each dimension corresponds to the standardized operating power level of the fan, the standardized operating power level of the thermoelectric cooling element, and the standardized operating power level of the active heating device, respectively.

[0048] In some optional implementations of certain embodiments, the above-mentioned temperature control decision model can be trained through the following steps: The first step is to obtain a first sample set. The first sample in this first sample set includes at least one sample temperature control data sequence from at least one outdoor CPE device, at least one sample temperature change information corresponding to the sample temperature control data sequence, and at least one sample temperature control action information corresponding to the sample temperature control data sequence. This first sample set can be obtained through simulation, acquiring historical data from existing equipment, etc. The sample temperature control data sequence can be obtained through the following steps: acquiring the logs of each of the at least one outdoor CPE devices, selecting random time points as sample points, reading the real-time status data and historical temperature control data corresponding to the sample point's time point from the logs, performing preprocessing and normalization on the real-time status data and historical temperature control data corresponding to the sample point's time point to obtain standard status data and standard historical temperature control data corresponding to the sample point's time point, and concatenating the standard status data and standard historical temperature control data corresponding to the sample point's time point to obtain the sample temperature control data sequence. The sample temperature change information can be a simplified representation of the temperature change trend after the time point corresponding to the sample point. For example, an upward temperature change trend after the time point corresponding to the sample point can be denoted as 1, and a downward temperature change trend after the time point corresponding to the sample point can be denoted as 0. The above sample temperature control action information can be the most recent temperature control action after the corresponding time point of the sample point.

[0049] The second step involves performing the following training steps based on the first sample set: The first sub-step involves inputting at least one sample temperature control data sequence from at least one sample in the first sample set into the initial temperature control decision neural network to obtain sample temperature change prediction information and sample temperature control action prediction information for each of the at least one first sample.

[0050] The second sub-step involves comparing the predicted temperature change information of each of the at least one first sample with the actual temperature change information of that sample to obtain a first comparison result. In practice, the execution entity can use the mean squared error loss function to compare and determine the difference between the predicted temperature change information of the sample and the actual temperature change information of that sample as the first comparison result.

[0051] The third sub-step involves comparing the predicted temperature control action information of each of the at least one first sample with the actual temperature control action information of the corresponding sample to obtain a second comparison result. In practice, the execution entity can use the mean squared error loss function or the cross-entropy loss function to compare and determine the difference between the predicted temperature control action information of the sample and the temperature control action information of the corresponding sample as the second comparison result.

[0052] The fourth sub-step involves determining, based on the first and second comparison results, whether the initial temperature control decision neural network has achieved a preset optimization objective. This preset optimization objective can be that the weighted sum of the first and second comparison results is less than a preset threshold.

[0053] The fifth sub-step is to determine that the initial temperature control decision neural network has achieved the above optimization objective, and then use the initial temperature control decision neural network as the trained temperature control decision model.

[0054] The sixth sub-step, in response to the determination that the initial temperature control decision neural network has not achieved the above optimization objective, involves adjusting the network parameters of the initial temperature control decision neural network, forming a new first sample set using unused first samples, and then using the adjusted initial temperature control decision neural network to execute the above training steps again. In practice, as an example, the backpropagation algorithm can be used to adjust the network parameters of the initial temperature control decision neural network.

[0055] Step 2026: Based on the temperature control action command information, control the operation of the fan, thermoelectric cooling chip and active heating device to control the temperature of the main control chip within the preset temperature range; In some embodiments, the aforementioned execution entity can control the operating power levels of the fan, thermoelectric cooler and active heating device through a power supply module, which may be a PMIC (Power Management Integrated Circuit) with output control function.

[0056] Step 2027: After a preset time interval following the current time, obtain the current time again, and execute steps 2021 to 2027 again based on the obtained current time.

[0057] In some embodiments, the aforementioned execution entity may calculate the time interval using system-internal components such as system clocks and timers.

[0058] Optionally, the above-mentioned control of the fan, thermoelectric cooler, and active heating device based on the temperature control action command information to control the temperature of the main control chip within a preset temperature range includes: the control module is configured to perform the following steps: decoding the temperature control action command information to obtain fan operating power level information, thermoelectric cooler operating power level information, and active heating device operating power level information. The decoding is used to map the various dimensions contained in the temperature control action command information output by the temperature control model to the standard operating power levels of the fan, thermoelectric cooler, and active heating device, respectively, through a preset mapping relationship, to obtain the fan operating power level, thermoelectric cooler operating power level information, and active heating device operating power level information. The fan's operating power level is adjusted to the specified operating power level. Based on the thermoelectric cooler's operating power level information, the power supply module is controlled to adjust the thermoelectric cooler's operating power level to the level corresponding to the thermoelectric cooler's operating power level information. Similarly, based on the active heating device's operating power level information, the power supply module is controlled to adjust the active heating device's operating power level to the level corresponding to the active heating device's operating power level information. For example, the main control chip can communicate with the power management integrated circuit via an I2C bus or SPI bus, writing voltage values ​​into registers corresponding to different channels to directly adjust the operating power of the fan, active heating device, and thermoelectric cooler.

[0059] The intelligent temperature control method applied to outdoor CPE equipment in some embodiments can improve the accuracy of temperature control and extend the lifespan of the internal components of the outdoor CPE equipment. Specifically, the reasons for the low temperature control accuracy and short lifespan of internal components in outdoor CPE equipment are as follows: Existing temperature control methods are typically bang-bang control. Bang-bang control uses a temperature threshold and a switch to control the temperature. When the equipment temperature is higher than the threshold, the heat dissipation components are activated; when it is lower than the threshold, the heat dissipation components are deactivated. A hysteresis range is also set to reduce frequent start-stop cycles. Because bang-bang control has a hysteresis range and uses a switch to control the start and stop of the heat dissipation components, the temperature fluctuates within a large range, resulting in low temperature control accuracy. Since the printed circuit board substrate, chip, solder pads, and chip pins are made of different materials with different coefficients of thermal expansion, internal stresses that vary with temperature are generated inside the printed circuit board during temperature fluctuations. With increasing usage time, the number of internal stress cycles increases, which may lead to fatigue cracking of the solder joints, reducing the lifespan of the internal components of the outdoor CPE equipment. Based on this, the intelligent temperature control method applied to outdoor CPE equipment described above, by incorporating the temperature control decision model, predicts temperature changes based on real-time operating status data and historical temperature control data, and determines temperature control action commands based on the prediction results, real-time operating status data and historical temperature control data. According to the determined temperature control action commands, each component is turned on to an appropriate operating power, thereby achieving precise temperature control, smaller temperature fluctuations and extending lifespan.

[0060] The above-described embodiments of this disclosure have the following beneficial effects: the outdoor CPE devices of some embodiments of this disclosure achieve stable high-performance performance in both high-temperature and low-temperature environments. Specifically, the reason why outdoor CPE devices cannot achieve stable high-performance performance in both high-temperature and low-temperature environments is that, due to the fixed thermal conductivity and thickness of the outer shell, the thermal resistance of existing outdoor CPE devices remains constant when dissipating heat, and it is impossible to adjust the thermal resistance for heat dissipation according to changes in ambient temperature. This results in existing devices being unable to simultaneously achieve heat dissipation at high temperatures and heat preservation at low temperatures. At the same time, the design of the overall heat sink accelerates heat loss within the device in low-temperature environments, leading to a decrease in device performance in low-temperature environments. Therefore, existing outdoor CPE devices cannot achieve stable high-performance performance in both high-temperature and low-temperature environments. Based on this, some embodiments of the outdoor CPE equipment disclosed herein include: a shell, a modified iron-doped nickel sulfide composite layer, a first metal heat sink, a second metal heat sink, and a thermal interface material; the shell has through holes, and the modified iron-doped nickel sulfide composite layer is attached to the inner wall of the shell; the first metal heat sink is encapsulated inside the shell, the first metal heat sink is installed at the bottom of the shell, and is in sealed contact with the modified iron-doped nickel sulfide composite layer attached to the inner wall of the shell through the thermal interface material, and the printed circuit board is disposed on the first metal heat sink; the second metal heat sink is installed on the outer side of the bottom of the shell, and is in sealed contact with the outer wall of the shell through the thermal interface material; the modified iron-doped nickel sulfide composite layer includes an elastic substrate and various modified iron-doped nickel sulfide blocks, the various modified iron-doped nickel sulfide blocks are embedded in the elastic substrate; there are gaps between each of the various modified iron-doped nickel sulfide blocks. Because the thermal conductivity of modified iron-doped nickel sulfide material changes with temperature—lower at low temperatures and higher at high temperatures—a modified iron-doped nickel sulfide composite layer with adjustable thermal conductivity for both high and low temperature environments can be created. This composite layer is then bonded to the inner wall of the outdoor CPE equipment's casing. This allows for adjustment of the thermal resistance of the internal components to the outside based on ambient temperature, balancing heat dissipation at high temperatures and insulation at low temperatures. Furthermore, by dividing the heat sink into two parts—one inside the casing and the other outside—the problem of excessive heat loss at low temperatures when using a single heat sink is solved, ensuring stable high performance for the outdoor CPE equipment in both high and low temperature environments.

[0061] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of technical features, but should also cover other technical solutions formed by arbitrary combinations of technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An outdoor CPE device, characterized in that, include: The outer shell, the modified iron-doped nickel sulfide composite layer, the first metal heat sink, the second metal heat sink, and the thermal interface material; The outer shell is provided with through holes, and the modified iron-doped nickel sulfide composite layer is attached to the inner wall of the outer shell; The first metal heat sink is encapsulated inside the housing. The first metal heat sink is installed at the bottom of the housing and is in sealed contact with the modified iron-doped nickel sulfide composite layer attached to the inner wall of the housing through the thermal interface material. The second metal heat sink is installed on the outer bottom of the housing and is in sealed contact with the outer wall of the housing through a thermal interface material; The modified iron-doped nickel sulfide composite layer includes an elastic substrate and various modified iron-doped nickel sulfide blocks, wherein the various modified iron-doped nickel sulfide blocks are embedded in the elastic substrate; There are gaps between each of the modified iron-doped nickel sulfide blocks.

2. The outdoor CPE equipment according to claim 1, characterized in that, The thermal interface material includes thermally conductive gel, thermally conductive adhesive, and thermally conductive silicone pad.

3. The outdoor CPE equipment according to claim 1, characterized in that, Also includes a cooling fan: A heat sink cover is formed on the bottom outer side of the outer casing, and the second metal heat sink is located inside the heat sink cover; The cooling fan is installed inside the heat sink cover and located below the second metal heat sink to accelerate the heat dissipation of the second metal heat sink.

4. The outdoor CPE equipment according to claim 1, characterized in that, Also includes printed circuit boards: An active heating device, a temperature sensor, and a control device are installed on the printed circuit board. The active heating device is connected to the control device, and the control device is connected to the temperature sensor. The control device detects the temperature inside the equipment before startup using the temperature sensor. If the temperature inside the equipment is lower than the preset temperature, the control device controls the active heating device to heat the printed circuit board to the preset temperature. The active heating device is controlled by the control device to generate heat and raise the temperature inside the equipment.

5. The outdoor CPE equipment according to claim 4, characterized in that, It also includes thermoelectric cooling elements; One side of the thermoelectric cooling element is a cooling surface, and the other side is a heating surface; The thermoelectric cooling element is connected to the printed circuit board; The heating surface of the thermoelectric cooling element is in sealed contact with the bonding surface of the second heat sink through a thermal interface material, and the cooling surface is in sealed contact with the outer surface of the outer casing through a thermal interface material.

6. The outdoor CPE equipment according to claim 4, characterized in that, It also includes function keys and the main control chip; The function key is connected to the control device, and the main control chip is located on the printed circuit board and connected to the control device; The control device is configured to perform the following control steps: In response to receiving a power-on signal from the function key, the current device temperature data is acquired via the temperature sensor; In response to determining that the temperature represented by the current device temperature data is higher than the preset lower limit start-up temperature, a power-on command is sent to the main control chip; In response to the determination that the temperature represented by the current equipment temperature data is lower than the preset lower limit start-up temperature, the active heating device is activated; In response to the determination that the active heating device is turned on, the current device temperature data is acquired through the temperature sensor at preset time intervals; In response to determining that the temperature represented by the current device temperature data is higher than the preset lower limit start-up temperature, the active heating device is turned off and a power-on command is sent to the main control chip.

7. An intelligent temperature control method, applied to the main control chip included in the outdoor CPE device of claim 6, the method comprising: Get the current time; Based on the current time, perform the following control steps: Acquire real-time operating status data of outdoor CPE devices, wherein the real-time operating status data includes its own temperature data, its own frequency level data, heat sink temperature and ambient temperature, network traffic data, main control chip utilization rate, fan speed, and real-time power consumption data obtained through the power supply module. The preset duration prior to the current time is defined as the sampling window, and the historical temperature control action information of the above sampling window is obtained as historical temperature control data. The real-time operating status data is preprocessed and normalized to obtain standardized status data; The historical temperature control data is preprocessed and normalized to obtain standard historical temperature control data; The standardized state data and standard historical temperature control data are spliced ​​together to obtain a temperature control data sequence. The temperature control data sequence is then input into a pre-trained temperature control decision model to obtain temperature control action command information. Based on the temperature control action command information, the fan, the thermoelectric cooling element and the active heating device are controlled to operate, so as to control the temperature of the main control chip to be within the preset temperature range; After a preset time interval following the current time, the current time is retrieved again, and the control steps are executed again based on the retrieved current time.

8. The method according to claim 7, wherein, The step of controlling the operation of the fan, the thermoelectric cooler, and the active heating device based on the temperature control action command information, so as to control the temperature of the main control chip within a preset temperature range, includes: The temperature control action command information is decoded to obtain the fan operating power level, thermoelectric cooling chip operating power level information, and active heating device operating power level information; Adjust the fan's operating power level to the specified fan operating power level; Based on the operating power level information of the thermoelectric cooler, the operation of the power supply module is controlled to adjust the operating power level of the thermoelectric cooler to the operating power level corresponding to the operating power level information of the thermoelectric cooler. Based on the operating power level information of the active heating device, the power supply module is controlled to adjust the operating power level of the active heating device to the operating power level corresponding to the operating power level information of the active heating device.

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