Outdoor telescope and power supply control method, control device and transmitting device thereof

Abstract

The application discloses an outdoor telescope and a power supply control method, a control device and a transmitting device thereof, and relates to the technical field of power supply. The output voltage of an embedded battery and the output voltage of an external battery are acquired. Based on the size relationship between the output voltage of the embedded battery and the output voltage of the external battery, the power supply switching circuit is controlled to turn on the electrical connection between the embedded battery and the load or the electrical connection between the external battery and the load, and the embedded battery or the external battery in the power supply state is determined as the main power supply, and the other battery not in the power supply state is determined as the standby power supply. The output voltage fluctuation characteristics of the main power supply are acquired when the main power supply supplies power to the load. When it is determined that the electrical connection between the main power supply and the load is disconnected based on the output voltage fluctuation characteristics, the power supply switching circuit is controlled to turn on the electrical connection between the standby power supply and the load. The application aims to improve the power supply stability of the outdoor telescope, so as to improve the outdoor observation continuity and the equipment safety.

Description

Technical Field

[0001] This invention relates to the field of power supply technology, and in particular to an outdoor telescope and its power supply control method, control device and transmitting device. Background Technology

[0002] Outdoor telescopes, as core optical tools connecting observers to distant scenery, are widely used in astronomical observation, outdoor adventure, sports event viewing, and field scientific research. To meet the long-term battery life requirements of these electronic devices in complex outdoor environments, dual-battery power supply systems (typically including a built-in battery and an external high-capacity battery) have gradually become the mainstream configuration for high-end outdoor telescopes. However, the actual application scenarios of outdoor telescopes are often accompanied by unpredictable mechanical shocks and vibrations. For example, during mountain climbing and hiking, the equipment may suffer severe impacts due to accidental drops; when used for mobile observation in vehicles or on ships, the equipment must withstand continuous vibrations caused by road bumps or waves; even during stationary observation, accidental contact with the tripod or swaying caused by strong winds can be transmitted to the telescope body; when used with a transmitter, each firing generates a strong transient mechanical recoil force, which may exert a reverse impact acceleration on the equipment itself. While existing outdoor telescopes have a certain degree of shock resistance in their structural design, they still have shortcomings in the connection stability of their power supply systems. In particular, for external battery interfaces, traditional physical contact methods are prone to power instability when subjected to sudden strong impacts or long-term micro-vibrations, affecting the continuity of outdoor observation and equipment safety. Summary of the Invention

[0003] The main objective of this invention is to provide an outdoor telescope and its power supply control method, control device, and transmitting device, thereby improving the power supply stability of the outdoor telescope and enhancing the continuity and safety of outdoor observation.

[0004] To achieve the above objectives, this invention proposes a power supply control method for an outdoor telescope. The outdoor telescope includes a power switching circuit, a built-in battery, and an external battery. The power switching circuit is electrically connected to both the built-in battery and the external battery, and both the built-in battery and the external battery are used to supply power to the load. The power supply control method for the outdoor telescope includes: Obtain the output voltage of the built-in battery and the output voltage of the external battery; Based on the relationship between the output voltage of the built-in battery and the output voltage of the external battery, the power switching circuit is controlled to connect the built-in battery to the load or connect the external battery to the load, and the built-in battery or the external battery currently in the power supply state is determined as the main power supply, and the other battery not in the power supply state is determined as the backup power supply. When the main power supply supplies power to the load, the output voltage fluctuation characteristics of the main power supply are obtained; If, based on the output voltage fluctuation characteristics, it is determined that the electrical connection between the main power supply and the load is disconnected, the power switching circuit is controlled to connect the backup power supply and the load.

[0005] In one embodiment, controlling the power switching circuit to connect the built-in battery to the load, or to connect the external battery to the load, based on the relationship between the output voltage of the built-in battery and the output voltage of the external battery, includes: When the output voltage of the built-in battery is greater than or equal to the output voltage of the external battery, the power switching circuit is controlled to connect the built-in battery to the load and disconnect the external battery from the load. When the output voltage of the built-in battery is less than the output voltage of the external battery, the power switching circuit is controlled to connect the external battery to the load and disconnect the built-in battery from the load.

[0006] In one embodiment, the output voltage fluctuation characteristics include any one or more combinations of voltage drop amplitude, voltage change rate, and voltage jitter frequency.

[0007] In one embodiment, the power supply control method for the outdoor telescope further includes: If, based on the output voltage fluctuation characteristics, it is determined that the voltage drop of the main power supply is caused by a transient change in contact impedance, the power switching circuit is controlled to simultaneously connect the electrical connection between the main power supply and the load, as well as the electrical connection between the backup power supply and the load.

[0008] In one embodiment, after acquiring the output voltage fluctuation characteristics of the main power supply, the power supply control method for the outdoor telescope further includes: If the output voltage fluctuation characteristic is that the voltage is greater than zero and less than or equal to a preset abnormal threshold, then it is determined that the main power supply voltage drop is caused by a transient change in contact impedance, and the preset abnormal threshold is greater than zero. If the output voltage fluctuation characteristic is that the voltage is less than or equal to zero, then it is determined that the electrical connection between the main power supply and the load is disconnected.

[0009] In one embodiment, the power supply control method for the outdoor telescope further includes: Get the current ambient temperature; The method of controlling the power switching circuit to connect the built-in battery to the load, or to connect the external battery to the load, based on the relationship between the output voltage of the built-in battery and the output voltage of the external battery, includes: When the current ambient temperature is lower than a preset low temperature threshold, the internal resistance compensation value of the external battery at the current ambient temperature is obtained. The output voltage of the external battery is compensated based on the internal resistance compensation value to obtain the equivalent load voltage of the external battery. When the output voltage of the built-in battery is greater than or equal to the equivalent load voltage, the power switching circuit is controlled to connect the built-in battery to the load and disconnect the external battery from the load. When the output voltage of the built-in battery is less than the equivalent load voltage, the power switching circuit is controlled to connect the external battery to the load and disconnect the built-in battery from the load.

[0010] The present invention also proposes a control device, the control device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the power supply control method for the outdoor telescope described in any of the preceding claims.

[0011] The present invention also proposes an outdoor telescope, which includes the control device described above, as well as a power switching circuit, a built-in battery and an external battery. The power switching circuit is electrically connected to the built-in battery and the external battery, respectively, and both the built-in battery and the external battery are used to supply power to the load.

[0012] The present invention also proposes a launching device, which includes a device body and an external battery compartment. The device body includes the outdoor telescope described above, the external battery compartment is used to house the external battery, and the internal battery is disposed within the device body.

[0013] In practical applications, the power supply control method for outdoor telescopes provided by this invention, by real-time monitoring and analysis of the voltage fluctuation characteristics of the main power supply, can accurately identify connection abnormalities caused by drop impacts, recoil vibrations, or continuous bumps, and immediately control the power switching circuit to switch to backup power supply. This effectively improves the problem of unexpected shutdown, restart, or data loss caused by momentary power interruption when outdoor telescopes encounter mechanical impacts (such as recoil from firearms or accidental drops), ensuring the continuity of observation tasks. Simultaneously, by prioritizing the selection of batteries with higher voltage (i.e., sufficient charge and low internal resistance) as the main power supply, the low internal resistance of high-capacity batteries effectively suppresses voltage drops under high-current loads (such as when image stabilization is enabled or the screen is high-brightness). This not only ensures the stability and safety of equipment operation but also maximizes the continuous working time after a single charge or battery replacement, reducing the number of times users need to frequently change batteries or search for charging ports in the field, thus improving the user experience. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A flowchart illustrating an embodiment of the power supply control method for an outdoor telescope according to the present invention; Figure 2 A flowchart illustrating another embodiment of the power supply control method for an outdoor telescope of the present invention; Figure 3 A flowchart illustrating another embodiment of the power supply control method for an outdoor telescope according to the present invention; Figure 4 A flowchart illustrating another embodiment of the power supply control method for an outdoor telescope of the present invention; Figure 5 This is a schematic diagram of the power supply circuit provided for an embodiment of the outdoor telescope of the present invention; Figure 6 This is a schematic diagram of the power supply circuit for another embodiment of the outdoor telescope of the present invention.

[0017] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of the present invention and are not intended to limit the present invention.

[0019] To better understand the technical solution of the present invention, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0020] Outdoor telescopes, as core optical tools connecting observers to distant scenery, are widely used in astronomical observation, outdoor adventure, sports event viewing, and field scientific research. To meet the long-term battery life requirements of these electronic devices in complex outdoor environments, dual-battery power supply systems (typically including a built-in battery and an external high-capacity battery) have gradually become the mainstream configuration for high-end outdoor telescopes. However, the actual application scenarios of outdoor telescopes are often accompanied by unpredictable mechanical shocks and vibrations. For example, during mountain climbing and hiking, the equipment may suffer severe impacts due to accidental drops; when used for mobile observation in vehicles or on ships, the equipment must withstand continuous vibrations caused by road bumps or waves; even during stationary observation, accidental contact with the tripod or swaying caused by strong winds can be transmitted to the telescope body; when used with a transmitter, each firing generates a strong transient mechanical recoil force, which may exert a reverse impact acceleration on the equipment itself. While existing outdoor telescopes have a certain degree of shock resistance in their structural design, they still have shortcomings in the connection stability of their power supply systems. In particular, for external battery interfaces, traditional physical contact methods are prone to power instability when subjected to sudden strong impacts or long-term micro-vibrations, affecting the continuity of outdoor observation and the safety of the equipment.

[0021] Therefore, refer to Figure 1 This invention proposes a power supply control method for an outdoor telescope. The outdoor telescope includes a power switching circuit, a built-in battery, and an external battery. The power switching circuit is electrically connected to both the built-in battery and the external battery. Both the built-in battery and the external battery are used to supply power to a load. The power supply control method for the outdoor telescope includes: Step S100: Obtain the output voltage of the built-in battery and the output voltage of the external battery.

[0022] In this embodiment, the power supply control method for the outdoor telescope of the present invention can be applied to the control device of the outdoor telescope. The control device can be implemented using a main controller, such as MCU (Micro Controller Unit), DSP (Digital Signal Processor), FPGA (Field Programmable Gate Array), PLC (Programmable Logic Controller), SOC (System On Chip), etc.

[0023] It is understandable that outdoor binoculars can be used alone or in conjunction with other devices. For example, outdoor binoculars can be used as mobile observation equipment for vehicles, or as sights or observation accessories mounted on launching devices (such as firearms, crossbows, or other launching devices).

[0024] In this embodiment, the voltage in the battery management system can intuitively and quickly reflect the battery's state of charge (SOC). Therefore, the control device can integrate a voltage sampling circuit, located in the battery circuit, to collect the voltage values ​​of the built-in battery and the external battery. In this embodiment, the built-in battery is electrically connected to the first input terminal of the power switching circuit, and the external battery is electrically connected to the second input terminal of the power switching circuit. The output terminal of the power switching circuit is electrically connected to the load via a power conversion circuit. The load includes various functional modules of the outdoor telescope, such as the display module, sensors, optical components, etc. The power conversion circuit is used to convert the output voltage of the built-in battery or the external battery into the power supply voltage required by the functional modules. The power switching circuit can be implemented using switching transistors such as transistors and MOSFETs, or using relays, contactors, etc. The voltage sampling points corresponding to the voltage sampling circuit are respectively set at the nodes before the built-in battery and the external battery enter the power switching circuit, ensuring that the real-time voltage of each battery can be read independently and without interference.

[0025] It should be noted that the control device's internal memory can pre-store the battery's voltage-SOC mapping curve. Based on the read voltage value and voltage-SOC mapping curve, the control device can estimate the current state of charge (SOC) and upload the result to the display module for user viewing of the battery level. For example, if the measured voltage is 4.2V, the corresponding SOC is 100%; if the measured voltage is 3.7V, the corresponding SOC is approximately 20%.

[0026] Step S200: Based on the relationship between the output voltage of the built-in battery and the output voltage of the external battery, control the power switching circuit to connect the built-in battery to the load, or connect the external battery to the load, and determine the built-in battery or the external battery currently in the power supply state as the main power supply, and determine the other battery not in the power supply state as the backup power supply.

[0027] In this embodiment, when the output voltage of the built-in battery is greater than or equal to the output voltage of the external battery, it indicates that the built-in battery has a high remaining charge. At this time, the power switching circuit can be controlled to open the electrical connection between its first input and output terminals, thus establishing the electrical connection between the built-in battery and the load. The built-in battery acts as the primary power supply for the load, while the external battery serves as a backup power supply. Conversely, when the output voltage of the built-in battery is less than the output voltage of the external battery, it indicates that the external battery has a high remaining charge. At this time, the power switching circuit can be controlled to open the electrical connection between its second input and output terminals, thus establishing the electrical connection between the external battery and the load. The external battery acts as the primary power supply for the load, while the built-in battery serves as a backup power supply. This ensures that the load is always driven by the power source with stronger power supply capabilities, prioritizing the consumption of high-charge batteries. This maximizes the continuous working time after a single charge or battery replacement, reducing the frequency of battery replacements or searching for charging ports in the field. Simultaneously, the remaining charge is closely related to its internal resistance and discharge capacity: low-charge batteries have significantly increased internal resistance. If a low-charge battery is forcibly used for power supply, the voltage will be instantly pulled down under a high-current load, potentially triggering a low-voltage alarm or even causing the device to restart unexpectedly. High-capacity batteries have lower internal resistance, enabling them to easily provide large currents. When outdoor binoculars are equipped with high-power functions such as electronic image stabilization, high-brightness screens, or autofocus, high-capacity batteries can maintain a stable voltage output without significant voltage drops.

[0028] Step S300: When the main power supply is supplying power to the load, obtain the output voltage fluctuation characteristics of the main power supply.

[0029] In this embodiment, the outdoor telescope can be identified as having been subjected to mechanical impact (such as recoil or drop) by analyzing the voltage fluctuation characteristics of the main power supply.

[0030] Optionally, the output voltage fluctuation characteristics include any one or more combinations of voltage drop amplitude, voltage change rate, and voltage jitter frequency.

[0031] In this embodiment, voltage drop refers to the degree to which the voltage drops significantly within a short period of time (e.g., from a few milliseconds to hundreds of milliseconds). If the main power supply experiences a sudden and sharp increase in internal resistance due to poor physical contact, the voltage at the load end will be instantly pulled down according to Ohm's law. Assume that an external battery is being used as the main power supply, and during a hike, the user accidentally drops their outdoor binoculars. Upon impact with the ground, the immense impact causes the spring contacts inside the external battery compartment to instantly disengage or become severely deformed. At this moment, if the control device detects that the output voltage of the external battery has plummeted from 12V to 5V within a few milliseconds (a drop of more than 50%), it determines that the external battery connection is broken and immediately switches to the internal battery for power, making the internal battery the main power supply.

[0032] In this embodiment, the voltage change rate refers to the slope of voltage change over time, i.e., the rate at which voltage decreases or increases. Normal battery discharge or load activation causes a gradual voltage drop (small slope); however, impedance surges caused by mechanical shocks result in a near-vertical, cliff-like voltage drop (extremely steep slope). Therefore, monitoring the voltage change rate can effectively filter out normal power consumption. For example, when an outdoor telescope is used as an accessory on a transmitting device, each excitation generates a strong transient mechanical recoil force. This reverse impact acceleration causes the battery contacts to bounce at high frequencies. At this time, the voltage does not decrease slowly as during normal discharge, but drops instantaneously with an extremely high rate of change. By identifying the voltage change rate, and determining that it exceeds a preset change rate threshold, the system can switch between primary and backup power before or at the moment the contacts completely disconnect. The preset change rate threshold can be set by the developers and stored in the control device's memory.

[0033] In this embodiment, voltage jitter frequency refers to the characteristic of voltage fluctuating periodically or randomly around a certain reference value at high frequencies. When outdoor telescope equipment is in a continuous vibration environment, it may cause periodic changes in circuit impedance, which in turn superimposes high-frequency noise or ripple (i.e., voltage jitter) on the output voltage. For example, when used in vehicle-mounted mobile observation or on ships, the telescope needs to withstand continuous vibrations caused by road bumps or waves for a long time; or when conducting fixed-point observation in the field, it may encounter continuous shaking of the fuselage caused by strong winds. This low-frequency, high-amplitude continuous vibration can cause fretting wear and periodic impedance fluctuations in the external battery interface. When the control device detects abnormal jitter of a specific frequency in the voltage signal, it can determine that the main power supply is in an unstable, loose connection state and immediately transfer the power supply to a more stable backup power supply.

[0034] In this way, by analyzing the characteristics of output voltage fluctuations, the current situation of the telescope can be accurately identified, thereby making precise power scheduling decisions and ensuring the continuity of outdoor observation.

[0035] Step S400: If it is determined based on the output voltage fluctuation characteristics that the electrical connection between the main power supply and the load is disconnected, control the power switching circuit to connect the electrical connection between the backup power supply and the load.

[0036] In this embodiment, the voltage drop amplitude is used as a key feature to determine whether the main power supply is disconnected from the load, thereby identifying power supply anomalies.

[0037] In this embodiment, it is assumed that the external battery is currently the main power supply, while the internal battery is in standby mode. During normal use, the external battery outputs a stable 6V voltage with a voltage drop of nearly 0. If the outdoor telescope is accidentally slipped from the hand and falls violently, the enormous mechanical impact force (sudden change in G-value) upon impact with the ground causes a momentary physical displacement of the metal spring or contacts inside the battery compartment, resulting in a microsecond-level "break" or "high-impedance contact" between the main power supply circuit and the load. At this time, the output voltage drops sharply from 6V to a certain value, such as 0V. If the voltage drop exceeds a preset safety threshold (e.g., a preset safety threshold of 50%), the control device determines that the electrical connection between the main power supply and the load has been broken due to the impact. At this time, the control power switching circuit (such as a MOSFET switch) is activated to connect the internal battery to the load, ensuring that the outdoor telescope will not shut down during the contact pop-out process and can still operate normally.

[0038] In this embodiment, it is assumed that the outdoor telescope is currently powered by its built-in battery (with an external battery as a backup). The outdoor telescope is mounted on a launching device or platform with strong recoil, and is subjected to momentary, severe vibrations each time it is fired. Under normal circumstances, the built-in battery is connected to the main board via a board-to-board connector or soldered wires, outputting a stable voltage of 3.7V-4.2V. When strong recoil or high-frequency vibration occurs, although the solder joints are relatively secure, the battery tabs or protection board connections may experience slight deformation or transient contact failure due to inertia; or in extreme drop scenarios, the battery cable connector may momentarily loosen. This momentary failure of the physical connection can cause a precipitous drop in voltage at the load end. The detection circuit detects that the voltage drop instantaneously reaches more than 80% (e.g., from 4.2V to 0.5V), thus determining that the connection between the built-in battery and the load has been abnormally disconnected. At this point, the power switching circuit is controlled to reconnect the external battery to the load. In this way, by setting reasonable preset safety thresholds (including drop amplitude thresholds), the battery switching operation is ensured to be triggered when a connection failure occurs.

[0039] In practical applications, the power supply control method for outdoor telescopes provided by this invention, by real-time monitoring and analysis of the voltage fluctuation characteristics of the main power supply, can accurately identify connection abnormalities caused by drop impacts, recoil vibrations, or continuous bumps, and immediately control the power switching circuit to switch to backup power supply. This effectively improves the problem of unexpected shutdown, restart, or data loss caused by momentary power interruption when outdoor telescopes encounter mechanical impacts (such as recoil from firearms or accidental drops), ensuring the continuity of observation tasks. Simultaneously, by prioritizing the selection of batteries with higher voltage (i.e., sufficient charge and low internal resistance) as the main power supply, the low internal resistance of high-capacity batteries effectively suppresses voltage drops under high-current loads (such as when image stabilization is enabled or the screen is high-brightness). This not only ensures the stability and safety of equipment operation but also maximizes the continuous working time after a single charge or battery replacement, reducing the number of times users need to frequently change batteries or search for charging ports in the field, thus improving the user experience.

[0040] In another embodiment, reference Figure 2 The step of controlling the power switching circuit to connect the built-in battery to the load, or to connect the external battery to the load, based on the relationship between the output voltage of the built-in battery and the output voltage of the external battery, includes: Step S210: When the output voltage of the built-in battery is greater than or equal to the output voltage of the external battery, control the power switching circuit to connect the built-in battery to the load and disconnect the external battery from the load. Step S220: When the output voltage of the built-in battery is less than the output voltage of the external battery, control the power switching circuit to connect the external battery to the load and disconnect the built-in battery from the load.

[0041] In this embodiment, when the control device determines that the built-in battery's charge is greater than or equal to that of the external battery, it establishes the built-in battery as the primary power supply. The control power switching circuit connects the first input terminal and the output terminal, and disconnects the power supply path to the external battery. Specifically, the control power switching circuit disconnects the second input terminal and the output terminal, allowing the external battery to act as a backup power source. Assume the outdoor telescope's built-in lithium battery currently measures an output voltage of 3.85V, while the external battery pack measures an output voltage of 3.70V. Because 3.85V > 3.70V (meeting the "greater than or equal to" condition), the control device (MCU) determines that the built-in battery is in a better state. It sends a control signal to the power switching circuit, closing the switch of the built-in battery power supply circuit and simultaneously opening the switch of the external battery power supply circuit. Thus, the outdoor telescope's display module, sensors, and other loads are powered by the built-in battery, while the external battery (3.70V) is in standby hot backup mode.

[0042] When the control device determines that the external battery's power level is better than the internal battery's, it establishes the external battery as the primary power source and cuts off the power supply to the internal battery, making it a backup power source. Assume the control device determines that the internal lithium battery's output voltage is 3.60V, while the external battery's output voltage is 4.10V. Because 3.60V < 4.10V (meeting the "less than" condition), the control device (MCU) determines that the external battery is in a better state and sends a control signal to the power switching circuit, closing the switch of the external battery's power supply circuit and simultaneously opening the switch of the internal battery's power supply circuit. At this time, the outdoor telescope's load is powered by the external battery (4.10V), with the internal battery (3.60V) serving as a backup power source. If the device experiences a drop or recoil impact in the wild, causing a momentary loss of contact in the external battery, the control device can seamlessly switch back to the internal battery power supply according to subsequent step S400, ensuring the device does not shut down.

[0043] By comparing the voltage of the built-in and external batteries in real time (a direct reflection of the State of Charge (SOC)), the system can automatically identify and prioritize the battery with higher remaining charge and stronger power supply capacity as the main power source. This "selective power supply" strategy avoids the problem of premature voltage drop caused by a low-charge battery forcibly driving the load, significantly extending the continuous working time of the outdoor telescope within a single usage cycle and reducing the frequency of users searching for charging ports or replacing batteries in the field. Simultaneously, while determining the main power source, the power switching circuit disconnects the non-main power source. This mutually exclusive conduction logic not only prevents potential circulating currents or voltage conflicts between the two power sources and reduces potential load interference from non-powered batteries to the main circuit, but also ensures that the backup power source is in a low-power state.

[0044] Understandably, when precision electronic devices such as outdoor telescopes are subjected to mechanical impacts such as drops or recoil, the electrical connections of the power supply system often experience physical anomalies. These anomalies mainly manifest in two forms: the disconnection of physical electrical connections and transient changes in contact impedance. A disconnection occurs when the instantaneous acceleration and vibration generated by a mechanical impact cause micrometer-level physical displacement of the metal springs or contacts within the battery compartment, or even instantaneous complete detachment. At this point, an open circuit is formed between the power supply circuit and the load, and the current loop is interrupted. Electrically, the output voltage at the load end will experience a precipitous drop within a very short time (e.g., within milliseconds), falling directly to 0V or an extremely low level affected only by a weak leakage current. This voltage will remain at an extremely low level as long as the external force is not removed or the equipment does not experience secondary vibration. Transient changes in contact impedance occur when the impact force is insufficient to completely detach the contacts, or when the contacts are in a critical "partially connected" state during the bounce. At this time, the oxide layer or contaminants on the surface of the metal contacts are damaged, or the contact pressure decreases instantaneously, leading to a sharp increase in contact resistance. Electrically, because the circuit is not completely disconnected, the voltage at the load end will not drop to 0V, but will instead experience a sharp, high-frequency voltage drop or fluctuation. Once the contacts are tightened again, the impedance returns to normal, and the voltage will rebound accordingly.

[0045] In one embodiment, the power supply control method for the outdoor telescope further includes: If, based on the output voltage fluctuation characteristics, it is determined that the voltage drop of the main power supply is caused by a transient change in contact impedance, the power switching circuit is controlled to simultaneously connect the electrical connection between the main power supply and the load, as well as the electrical connection between the backup power supply and the load.

[0046] In this embodiment, if the electrical connection between the battery and the load is not completely disconnected, but the contact resistance increases instantaneously (causing a voltage drop), there is no need to switch to another battery for power. Instead, the load is powered simultaneously by both the built-in and external batteries. That is, when the control device detects a voltage drop in the main power supply due to an impact, it maintains the electrical connection between the main power supply and the load in a conducting state. Simultaneously, the control power switching circuit connects the backup power supply to the load, allowing the two power supplies to enter a short-term parallel power supply state. The low internal resistance of the backup power supply maintains a stable voltage at the load end. Because the battery contacts maintain physical contact during the transient change in contact impedance, the contact surface undergoes high-frequency micro-friction or compression deformation due to severe vibration. This causes the effective contact area to shrink instantaneously, or the oxide film / contaminants on the contact surface to be disturbed, resulting in a sudden and sharp increase in contact resistance. At this time, another battery can immediately help share the current.

[0047] Based on the above embodiments, when it is determined that the electrical connection between the main power supply and the load is broken based on the output voltage fluctuation characteristics, it indicates that the spring / sheet is momentarily disengaged from the negative terminal of the battery. At this point, the physical contact between the metals is lost, and the electrical connection between the main power supply and the load is broken. Therefore, it is necessary to control the power switching circuit to connect the backup power supply to the load, so that the backup power supply powers the load, and the roles of the two batteries are reversed.

[0048] Among them, reference Figure 3 After acquiring the output voltage fluctuation characteristics of the main power supply, the power supply control method for the outdoor telescope further includes: Step S500: If the output voltage fluctuation characteristic is that the voltage is greater than zero and less than or equal to a preset abnormal threshold, then it is determined that the main power supply voltage drops due to contact impedance transients, and the preset abnormal threshold is greater than zero.

[0049] In this embodiment, the preset anomaly threshold can be pre-set by the R&D personnel and stored in the memory of the control device. For example, the R&D personnel can set it based on the minimum safe operating voltage of the outdoor telescope load (such as MCU, sensors, motors, etc.). In the power supply system of the outdoor telescope, the load (such as the display module, autofocus motor, etc.) has a "minimum operating voltage" (e.g., 3.0V). If the voltage is lower than this value, the device will crash or restart. The preset anomaly threshold is a critical value set based on this minimum operating voltage (usually slightly higher than the minimum operating voltage, for example, set to 3.2V).

[0050] In this embodiment, when the outdoor telescope is subjected to a drop or recoil impact, the battery contacts may experience high-frequency bouncing or a momentary decrease in pressure. At this time, the metal contacts do not completely separate, but due to the drastic reduction in contact area or damage to the surface oxide layer, the contact resistance spikes instantaneously. Because the physical circuit still exists (voltage > 0V), the load will detect a momentary voltage drop, but it will not return to zero completely. Assume the nominal voltage of the main power supply is 4.2V. When subjected to an impact, the battery contacts experience high-frequency bouncing or a decrease in contact pressure, causing the voltage to drop instantaneously to below 3.2V (e.g., to 2.5V), but still greater than 0V. The control device determines that the voltage drop is caused by impedance transients and controls the power switching circuit to connect the backup power supply and the load, maintaining the electrical connection between the main power supply and the load in a conductive state. Thus, the backup power supply utilizes its low internal resistance to provide a stable current to the load, absorbing voltage fluctuations caused by impedance changes in the main power supply, ensuring that the equipment does not shut down or restart during vibration.

[0051] Step S600: If the output voltage fluctuation characteristic is that the voltage is less than or equal to zero, then it is determined that the electrical connection between the main power supply and the load is disconnected.

[0052] In this embodiment, excessive acceleration from the mechanical impact may cause severe physical displacement of the metal springs or contacts within the battery compartment, creating a complete "open circuit" between the main power supply circuit and the load, completely cutting off the current loop. Electrically, the load loses its main power input, and the voltage drops directly to 0V (or an extremely low level affected by a weak leakage current in the system). The control device determines that the electrical connection between the main power supply and the load is broken and must immediately control the power switching circuit to completely disconnect the main power supply from the load and fully connect the backup power supply to the load to prevent surge current from impacting the load due to the unstable main power supply voltage at the moment the equipment vibration stops and the contacts reopen.

[0053] In this embodiment, assuming that the output voltage of the external battery is greater than that of the internal battery, the control device controls the power switching circuit to connect the external battery to the load and disconnect the internal battery from the load. At this time, the external battery acts as the main power supply to power the load, while the internal battery acts as a backup power supply in a "standby power supply state". If, during the operation of the external battery, the user pulls the trigger to fire, generating a recoil impact, and the control device determines that the external voltage is greater than zero and less than or equal to the preset abnormal threshold, it indicates that the voltage drop is only caused by a change in contact impedance, and the electrical connection between the external battery and the load is not completely disconnected. Therefore, the control device controls the power switching circuit to connect the internal battery and the load while maintaining the electrical connection between the external battery and the load. Conversely, if the external voltage is zero, it indicates that the metal spring or contacts in the battery compartment have undergone severe physical displacement, creating a complete "open circuit" between the main power supply circuit and the load. The current loop is completely cut off, meaning the electrical connection between the external battery and the load is completely disconnected. Therefore, the control device controls the power switching circuit to connect the internal battery and the load while disconnecting the external battery and the load. In this case, the internal battery serves as the main power supply, and the external battery serves as the backup power supply.

[0054] It distinguishes between two different mechanical faults: poor contact (lack of connection) and complete disconnection (open circuit). A graded handling mechanism is established to maintain stable operation of the equipment by connecting two power supplies in parallel when the contacts bounce. It can also safely and seamlessly switch to the backup power supply when the contacts are completely disconnected, ensuring the continuity of operation and the safety of the outdoor telescope under harsh conditions.

[0055] In outdoor telescope applications, temperature fluctuations are drastic, and the internal resistance of chemical power sources such as lithium batteries increases significantly at low temperatures. Comparing only the "open voltage" or simple "terminal voltage" may mistakenly lead to the assumption that the battery is fully charged. Once a load (such as a motor or heating element) is connected, the voltage will drop instantly, causing the device to shut down.

[0056] In one embodiment, the power supply control method for the outdoor telescope further includes: Get the current ambient temperature.

[0057] In this embodiment, a temperature detection circuit, including but not limited to an NTC thermistor and a digital temperature sensor, may also be installed inside the outdoor telescope. Optionally, the temperature detection circuit can be integrated with the control device. A digital temperature sensor typically refers to the temperature inside or adjacent to the battery compartment. The temperature detection circuit should be as close as possible to the contacts of the external battery or the surface of the internal battery cell. For example, for an external battery, the NTC can be attached near the metal contacts of the battery compartment; for an internal battery, it can be directly attached to the side of the cell using thermally conductive adhesive.

[0058] refer to Figure 4 The step of controlling the power switching circuit to connect the built-in battery to the load, or to connect the external battery to the load, based on the relationship between the output voltage of the built-in battery and the output voltage of the external battery, includes: Step S310: When the current ambient temperature is lower than a preset low temperature threshold, obtain the internal resistance compensation value of the external battery at the current ambient temperature.

[0059] In this embodiment, since the internal resistance of the battery is not fixed, it increases as the temperature decreases. Therefore, a mathematical relationship can be established to find the increase in internal resistance corresponding to the current temperature. The built-in battery is located inside the telescope body, protected by the outer casing, and the heat generated by the circuitry during operation is conducted to the body, providing some insulation, resulting in a relatively slow temperature change. External batteries, on the other hand, are usually located in an external battery compartment or are in a semi-exposed state, directly exposed to cold winds and low ambient temperatures. Their actual temperature is often lower than that inside the body, and the cooling rate is extremely fast. Therefore, this application mainly focuses on correcting and compensating for the voltage of the external battery.

[0060] In this embodiment, a high-precision thermistor (NTC) or digital temperature sensor (such as DS18B20) can be placed on the PCB inside the telescope, close to the external battery compartment or external battery interface, to collect ambient temperature data in real time. Researchers can conduct full-temperature range tests (e.g., from -20°C to +50°C) on different models of external batteries in the laboratory beforehand, plotting a "temperature-internal resistance curve." This curve is fitted into a formula (such as polynomial fitting) or a lookup table (LUT) and stored in the control device's memory. When the control device obtains the current ambient temperature based on the temperature detection circuit and determines that it is below a preset low-temperature threshold, compensation is required; otherwise, using battery parameters at room temperature would cause errors. The control device can calculate the current internal resistance compensation value by looking up a table or substituting into a formula. The preset low-temperature threshold is set in advance by the researchers and stored in the control device's memory. The preset low-temperature threshold indicates that the current temperature's impact on the battery is at a critical point; if the temperature is below the preset low-temperature threshold, it means that the temperature has a significant and non-negligible impact on battery performance.

[0061] Step S320: Compensate the output voltage of the external battery based on the internal resistance compensation value to obtain the equivalent load voltage of the external battery.

[0062] In this embodiment, the battery may display 4.0V (no load) at low temperatures, but it quickly drops to 3.0V upon power-on. The calculated "equivalent load voltage" may only be 3.2V, which is the battery's true working capacity. Therefore, the equivalent load voltage can be determined based on the internal resistance compensation value, preventing the outdoor telescope from shutting down and restarting due to insufficient voltage after switching to an external battery.

[0063] In this embodiment, researchers can experimentally determine the relationship between the internal resistance compensation value and the equivalent load voltage, and store it in the memory of the control device in the form of a formula or table. After determining the internal resistance compensation value, the control device can immediately determine the equivalent load voltage. For example, the preset formula is: ; in, This is the equivalent load voltage. The output voltage of the external battery is collected by the voltage sampling circuit. The average current (or peak current, depending on safety policy) when the outdoor telescope is in operation. This is the internal resistance compensation value.

[0064] Step S330: When the output voltage of the built-in battery is greater than or equal to the equivalent load voltage, control the power switching circuit to connect the built-in battery to the load and disconnect the external battery from the load.

[0065] In this embodiment, the control device can compare the built-in battery (its measured voltage, which is typically less affected by ambient temperature) with the equivalent load-carrying voltage of the external battery. If the output voltage of the built-in battery is greater than or equal to the equivalent load-carrying voltage, the external battery may be unable to drive high-power components (such as gimbal rotation) due to excessive internal resistance. Forcing the use of the external battery in this situation would lead to system instability. Therefore, the built-in battery, which typically has insulation or better performance, should be used as the main power supply to power the load. That is, even if the surface voltage of the external battery is acceptable, its actual load-carrying capacity is less than that of the built-in battery after low-temperature compensation, in which case the built-in battery will provide power. Thus, ensuring power supply stability takes precedence over battery life.

[0066] Step S340: When the output voltage of the built-in battery is less than the equivalent load voltage, control the power switching circuit to connect the external battery and the load, and disconnect the built-in battery from the load.

[0067] In this embodiment, if the control device determines that the output voltage of the built-in battery is less than the equivalent load voltage, it will control the electrical connection between the external battery and the load to be turned on, and disconnect the electrical connection between the built-in battery and the load. Even at low temperatures, the remaining energy and internal resistance of the external battery are still superior to those of the built-in battery, and it can meet the current load requirements. At this time, the external battery is used as the main power supply, avoiding the waste of the remaining usable power of the external battery due to excessive conservatism, and extending the total working time of the outdoor telescope.

[0068] By introducing ambient temperature detection and internal resistance compensation mechanisms, the true performance degradation of external batteries at low temperatures can be accurately identified. Using the calculated equivalent load voltage instead of the traditional open-circuit voltage as the judgment criterion effectively avoids misjudgments of "phantom voltage" caused by the battery's low-temperature polarization effect. This prevents unexpected shutdowns or restarts caused by a sudden voltage drop after switching to an external battery, ensuring the telescope's continuous and stable operation in frigid outdoor environments. Furthermore, targeted compensation is provided for the external battery's direct exposure to the environment and poor thermal buffering capacity, compensating for the differences in thermal characteristics between internal and external batteries. This allows the device to better accommodate external batteries of different brands and aging levels, reducing the risk of a decline in user experience due to improper battery selection or sudden environmental changes.

[0069] The present invention also proposes a control device, the control device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the power supply control method for the outdoor telescope described in any of the preceding claims.

[0070] The control device provided by this invention is based on the power supply control method for outdoor telescopes described above. Compared with the prior art, the beneficial effects of the control device provided by this invention are the same as those of the power supply control method for outdoor telescopes provided in the above embodiments, and other technical features in the control device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0071] The present invention also proposes an outdoor telescope, which includes the control device described above, as well as a power switching circuit, a built-in battery and an external battery. The power switching circuit is electrically connected to the built-in battery and the external battery, respectively, and both the built-in battery and the external battery are used to supply power to the load.

[0072] The outdoor telescope provided by this invention includes the control device described above. Compared with the prior art, the beneficial effects of the outdoor telescope provided by this invention are the same as those of the control device provided in the above embodiments, and other technical features of the outdoor telescope are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0073] The present invention also proposes a launching device, which includes a device body and an external battery compartment. The device body includes the outdoor telescope described above, the external battery compartment is used to house the external battery, and the internal battery is disposed within the device body.

[0074] In this embodiment, the launching device generates a significant amount of heat during prolonged operation or launch. By separating the external battery into a dedicated compartment, the high temperatures of the main unit prevent the battery from being directly heated, extending battery life and reducing the risk of thermal runaway. Furthermore, the external battery compartment is typically designed with a high-capacity or quick-replacement structure. In field or combat environments, users can quickly replace the external battery without disassembling the main unit, improving the user experience.

[0075] In this embodiment, as Figure 5 As shown, Figure 5 This is a circuit diagram showing the power supply circuit for the built-in battery and external power source. BAT_VCC is the output voltage of the built-in battery, and VCC_VUSB is the external USB power supply voltage. The circuit automatically selects which power source to use based on the voltage difference, while preventing reverse current flow. With both the USB and battery present (assuming VCC_VUSB = 5V, BAT_VCC = 3.7V), VCC_VUSB, after passing through D3, will pull up the voltage at VCC5. At this time, the body diode of the MOSFET will be reverse-biased and cut off. Since the output voltage VCC5 (4.5V) is higher than the battery voltage (3.7V), current cannot flow from the battery. Figure 6 As shown, Figure 6The circuit diagram shows the power supply circuit for the external battery, with BAT2+ representing the output voltage of the external battery. In practice, whichever has the highest voltage among the external battery, internal battery, and external power supply becomes the main power source (considering the diode voltage drop) to power the load. This utilizes the physical characteristics of the diode to achieve power switching, ensuring the device doesn't suddenly lose power, extending battery life, and improving the user experience.

[0076] The transmitting device provided by this invention includes the outdoor telescope described above. Compared with the prior art, the beneficial effects of the transmitting device provided by this invention are the same as those of the outdoor telescope provided in the above embodiments, and other technical features of the transmitting device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0077] The above description is only a part of the embodiments of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the technical concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A power supply control method for an outdoor telescope, characterized in that, The outdoor telescope includes a power switching circuit, a built-in battery, and an external battery. The power switching circuit is electrically connected to both the built-in battery and the external battery, and both the built-in battery and the external battery are used to supply power to the load. The power supply control method of the outdoor telescope includes: Obtain the output voltage of the built-in battery and the output voltage of the external battery; Based on the relationship between the output voltage of the built-in battery and the output voltage of the external battery, the power switching circuit is controlled to connect the built-in battery to the load or connect the external battery to the load, and the built-in battery or the external battery currently in the power supply state is determined as the main power supply, and the other battery not in the power supply state is determined as the backup power supply. When the main power supply supplies power to the load, the output voltage fluctuation characteristics of the main power supply are obtained; If, based on the output voltage fluctuation characteristics, it is determined that the electrical connection between the main power supply and the load is disconnected, the power switching circuit is controlled to connect the backup power supply and the load.

2. The power supply control method for an outdoor telescope as described in claim 1, characterized in that, The method of controlling the power switching circuit to connect the built-in battery to the load, or to connect the external battery to the load, based on the relationship between the output voltage of the built-in battery and the output voltage of the external battery, includes: When the output voltage of the built-in battery is greater than or equal to the output voltage of the external battery, the power switching circuit is controlled to connect the built-in battery to the load and disconnect the external battery from the load. When the output voltage of the built-in battery is less than the output voltage of the external battery, the power switching circuit is controlled to connect the external battery to the load and disconnect the built-in battery from the load.

3. The power supply control method for an outdoor telescope as described in claim 1, characterized in that, The output voltage fluctuation characteristics include any one or more combinations of voltage drop amplitude, voltage change rate, and voltage jitter frequency.

4. The power supply control method for an outdoor telescope as described in claim 1, characterized in that, The power supply control method for the outdoor telescope also includes: If, based on the output voltage fluctuation characteristics, it is determined that the voltage drop of the main power supply is caused by a transient change in contact impedance, the power switching circuit is controlled to simultaneously connect the electrical connection between the main power supply and the load, as well as the electrical connection between the backup power supply and the load.

5. The power supply control method for an outdoor telescope as described in any one of claims 1 to 4, characterized in that, After acquiring the output voltage fluctuation characteristics of the main power supply, the power supply control method for the outdoor telescope further includes: If the output voltage fluctuation characteristic is that the voltage is greater than zero and less than or equal to a preset abnormal threshold, then it is determined that the main power supply voltage drop is caused by a transient change in contact impedance, and the preset abnormal threshold is greater than zero. If the output voltage fluctuation characteristic is that the voltage is less than or equal to zero, then it is determined that the electrical connection between the main power supply and the load is disconnected.

6. The power supply control method for an outdoor telescope as described in claim 1, characterized in that, The power supply control method for the outdoor telescope also includes: Get the current ambient temperature; The method of controlling the power switching circuit to connect the built-in battery to the load, or to connect the external battery to the load, based on the relationship between the output voltage of the built-in battery and the output voltage of the external battery, includes: When the current ambient temperature is lower than a preset low temperature threshold, the internal resistance compensation value of the external battery at the current ambient temperature is obtained. The output voltage of the external battery is compensated based on the internal resistance compensation value to obtain the equivalent load voltage of the external battery. When the output voltage of the built-in battery is greater than or equal to the equivalent load voltage, the power switching circuit is controlled to connect the built-in battery to the load and disconnect the external battery from the load. When the output voltage of the built-in battery is less than the equivalent load voltage, the power switching circuit is controlled to connect the external battery to the load and disconnect the built-in battery from the load.

7. A control device, characterized in that, The control device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the power supply control method for the outdoor telescope as described in any one of claims 1 to 6.

8. An outdoor telescope, characterized in that, The outdoor telescope includes the control device as described in claim 7, as well as a power switching circuit, a built-in battery, and an external battery. The power switching circuit is electrically connected to the built-in battery and the external battery, respectively. Both the built-in battery and the external battery are used to supply power to the load.

9. A launching device, characterized in that, The transmitting device includes a device body and an external battery compartment. The device body includes the outdoor telescope as described in claim 8. The external battery compartment is used to house the external battery. The internal battery is located within the device body.

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