Holder unlocking control circuit applied to laser obstacle removing equipment

Abstract

The utility model relates to the technical field of circuit control, in particular to a cradle head unlocking control circuit applied to laser obstacle removing equipment. The circuit comprises an auxiliary power supply, a detection unit, a switch control unit and an unlocking unit, the first end of the detection unit is connected with the power supply, the second end of the detection unit is connected with the first end of the switch control unit, the second end of the switch control unit is connected with the auxiliary power supply, the third end of the switch control unit is connected with the unlocking unit, and the unlocking unit is further connected with a locking device of the laser holder. When a detection unit obtains that a power supply signal of a power supply is lower than a threshold voltage, an abnormal power failure condition is judged, an auxiliary driving signal is generated, and a switch control unit adopts an auxiliary power supply to drive a locking device to unlock when receiving the auxiliary driving signal. It is ensured that the pan-tilt of the laser obstacle clearing equipment can be unlocked when a fault abnormal condition occurs, and normal operation of equipment hardware can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of circuit control technology, and in particular to a gimbal unlocking control circuit for use in laser obstacle removal equipment. Background Technology

[0002] Laser obstacle removal equipment is used for clearing foreign objects and removing tree obstructions from power transmission lines. During operation, the laser emitter's aiming, object removal, cutting, and tree clearing functions heavily rely on the pan-tilt unit (PTZ). The PTN contains a drive motor that enables high-precision motion control. Therefore, during aiming or removal tasks, a locking device is required to keep the emitter fixed to the PTN, preventing positional shifts caused by external forces or inertia.

[0003] An electromagnetic braking device can be integrated into the gimbal axis to lock and secure the laser emitter during operation and unlock it after operation, allowing the laser emitter to be removed for replacement and maintenance. However, since laser obstacle removal equipment often operates in outdoor environments, the electromagnetic braking device may malfunction and the motor may lock in the event of an unexpected power outage. This necessitates a mechanical hard unlocking of the electromagnetic lock, but this method may damage the lock's hardware structure, creating a potential malfunction.

[0004] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is prior art. Utility Model Content

[0005] The main purpose of this utility model is to provide a gimbal unlocking control circuit for laser obstacle removal equipment, which aims to solve the technical problem in the prior art where abnormal power failure of laser obstacle removal equipment causes the laser gimbal locking device to fail to unlock properly, resulting in hardware damage.

[0006] To achieve the above objectives, this utility model provides a gimbal unlocking control circuit for laser obstacle removal equipment, the circuit comprising: an auxiliary power supply, a detection unit, a switch control unit, and an unlocking unit;

[0007] The first end of the detection unit is connected to the power supply, the second end of the detection unit is connected to the first end of the switch control unit, the second end of the switch control unit is connected to the auxiliary power supply, the third end of the switch control unit is connected to the unlocking unit, and the unlocking unit is also connected to the locking device of the laser gimbal.

[0008] The detection unit is used to acquire the power supply signal of the power supply, generate an auxiliary drive signal when the voltage of the power supply signal is lower than the threshold voltage, and transmit the auxiliary drive signal to the switch control unit.

[0009] The switch control unit is used to transmit the auxiliary power supply signal of the auxiliary power supply to the unlocking unit when it receives the auxiliary drive signal;

[0010] The unlocking unit is used to drive the locking device to unlock when the auxiliary power supply signal is received.

[0011] In one embodiment, the fourth terminal of the switch control unit is connected to the power supply.

[0012] The detection unit is also configured to generate a main control drive signal when the voltage of the power supply signal is higher than the threshold voltage, and transmit the main control drive signal to the switch control unit;

[0013] The switch control unit is also used to transmit a lock power supply signal to the unlocking unit when it receives the main control drive signal;

[0014] The unlocking unit is also used to drive the locking device to unlock and lock according to the locking power supply signal.

[0015] In one embodiment, the detection unit includes: a first resistor to a fourth resistor, a first switching transistor, and a first capacitor;

[0016] The first end of the first resistor is connected to the power supply. The second end of the first resistor is connected to the first end of the second resistor, the first end of the first capacitor, and the first end of the first switching transistor. The second end of the second resistor and the second end of the first capacitor are grounded. The second end of the first switching transistor is connected to the first end of the third resistor and the first end of the fourth resistor. The second end of the third resistor is connected to the auxiliary power supply. The second end of the fourth resistor is grounded. The third end of the first switching transistor is grounded.

[0017] In one embodiment, the switch control unit includes: a second switch transistor and a fifth resistor;

[0018] The first end of the second switch is connected to the second end of the first switch, the second end of the second switch is connected to the auxiliary power supply, the third end of the second switch is connected to the first end of the fifth resistor, and the second end of the fifth resistor is connected to the first end of the unlocking unit.

[0019] In one embodiment, the switch control unit further includes: a third switch transistor and a sixth resistor;

[0020] The first end of the third switch is connected to the first end of the second switch, the second end of the third switch is connected to the first end of the sixth resistor, the second end of the sixth resistor is connected to the power supply, and the third end of the third switch is connected to the second end of the unlocking unit.

[0021] In one embodiment, the switch control unit further includes: a fourth switch transistor;

[0022] The fourth switch is disposed between the sixth resistor and the third switch, and the fourth switch also receives a lock-up enable signal from the gimbal controller.

[0023] In one embodiment, the gimbal unlocking control circuit applied to the laser obstacle removal device further includes: a charging circuit;

[0024] The first end of the charging circuit is connected to the power supply, and the second end of the charging circuit is connected to the auxiliary power supply.

[0025] In one embodiment, the charging circuit includes: a seventh resistor and a second capacitor;

[0026] The first end of the seventh resistor is connected to the first end of the sixth resistor, the first end of the second capacitor, and the auxiliary power supply. The second end of the seventh resistor is connected to the second end of the second capacitor and grounded.

[0027] In one embodiment, the gimbal unlocking control circuit applied to the laser obstacle removal device further includes: a rectifier;

[0028] The first end of the rectifier is connected to the mains power, and the second end of the rectifier is connected to the power supply.

[0029] The rectifier is used to convert the AC signal from the mains power supply into the DC signal from the power supply.

[0030] In addition, to achieve the above objectives, this utility model also proposes a laser obstacle removal device, which includes: a laser emitting device, a laser gimbal, and the gimbal unlocking control circuit described above for use in the laser obstacle removal device.

[0031] This utility model provides a gimbal unlocking control circuit for laser obstacle removal equipment. The circuit includes an auxiliary power supply, a detection unit, a switch control unit, and an unlocking unit. The first terminal of the detection unit is connected to the power supply, the second terminal is connected to the first terminal of the switch control unit, the second terminal of the switch control unit is connected to the auxiliary power supply, and the third terminal of the switch control unit is connected to the unlocking unit. The unlocking unit is also connected to the locking device of the laser gimbal. The detection unit acquires the power supply signal and, when the voltage of the power supply signal is lower than a threshold voltage, generates an auxiliary drive signal and transmits the auxiliary drive signal to the switch control unit. The switch control unit, upon receiving the auxiliary drive signal, transmits the auxiliary power supply signal to the unlocking unit. The unlocking unit, upon receiving the auxiliary power supply signal, drives the locking device to unlock. By detecting that the power supply signal is lower than the threshold voltage, the detection unit determines an abnormal power failure and uses the auxiliary power supply to drive the locking device to unlock. This ensures that the gimbal of the laser obstacle removal equipment can still unlock in the event of a fault or abnormal situation, guaranteeing the normal operation of the equipment hardware. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the first embodiment of the gimbal unlocking control circuit of the present invention applied to a laser obstacle removal device;

[0034] Figure 2 This is a schematic diagram of the second embodiment of the gimbal unlocking control circuit of the present invention applied to a laser obstacle removal device;

[0035] Figure 3 This is a circuit connection diagram of the second embodiment of the gimbal unlocking control circuit of the present invention applied to a laser obstacle removal device;

[0036] Figure 4 This is a circuit connection diagram of the third embodiment of the gimbal unlocking control circuit of the present invention applied to laser obstacle removal equipment;

[0037] Figure 5 This is a schematic diagram of the structure of an embodiment of the laser obstacle removal device of this utility model;

[0038] Figure 6This is a circuit connection diagram of an embodiment of the laser obstacle removal device of this utility model.

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0040] Explanation of reference numerals in the attached figures:

[0041] R1, first resistor; R2, second resistor; R3, third resistor; R4, fourth resistor; R5, fifth resistor; R6, sixth resistor; R7, seventh resistor; C1, first capacitor; C2, second capacitor; Q1, first switching transistor; Q2, second switching transistor; Q3, third switching transistor; Q4, fourth switching transistor; 10, detection unit; 20, switch control unit; 30, unlocking unit; 40, locking device; 50, charging circuit; Vsp, auxiliary power supply; Vcc, power supply; VIN, mains power. Detailed Implementation

[0042] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0046] Reference Figure 1 , Figure 1This is a schematic diagram of the first embodiment of the gimbal unlocking control circuit of this utility model applied to a laser obstacle removal device. This utility model proposes a first embodiment of the gimbal unlocking control circuit applied to a laser obstacle removal device.

[0047] In this embodiment, the circuit includes: an auxiliary power supply Vsp, a detection unit 10, a switch control unit 20, and an unlocking unit 30; wherein, the first end of the detection unit 10 is connected to the power supply Vcc, the second end of the detection unit 10 is connected to the first end of the switch control unit 20, the second end of the switch control unit 20 is connected to the auxiliary power supply Vsp, the third end of the switch control unit 20 is connected to the unlocking unit 30, and the unlocking unit 30 is also connected to the locking device 40 of the laser gimbal.

[0048] It should be noted that the detection unit 10 can be used to acquire the power supply signal of the power supply, generate an auxiliary drive signal when the voltage of the power supply signal is lower than the threshold voltage, and transmit the auxiliary drive signal to the switch control unit 20; the switch control unit 20 can be used to transmit the auxiliary power supply signal of the auxiliary power supply Vsp to the unlocking unit 30 when it receives the auxiliary drive signal; the unlocking unit 30 can be used to drive the locking device 40 to unlock when it receives the auxiliary power supply signal.

[0049] It should be understood that the power supply signal can be an electrical signal that powers the various electronic components in the laser obstacle removal equipment. The laser obstacle removal equipment is connected to the mains power supply through a connection cable interface, and the power is converted into the power supply for the various electronic components through transformation, rectification, etc. Since laser obstacle removal equipment is often used in outdoor environments (such as clearing tree obstacles, remote ignition, etc.), the power supply environment is not stable, and occasional power outages may occur, causing abnormal power loss. When an abnormal power loss occurs, the power supply signal will quickly drop from its rated voltage to a low level, failing to ensure the normal operation of the electronic components. The threshold voltage can be a preset voltage for judging abnormal power loss of the power supply signal. During normal operation, due to environmental interference, the power supply signal may fluctuate within a certain range. To avoid misjudgment, the threshold voltage can be set to 40%~60% of the rated voltage of the power supply signal, ensuring fault detection while avoiding misjudgment.

[0050] Furthermore, the detection unit can be an electronic device capable of detecting signal voltage amplitude, sampling and detecting the signal amplitude, and generating a corresponding output signal based on the detection result. For example, it can be a comparator or a drive switch. The auxiliary drive signal can be an output level signal generated by the detection unit when the power supply signal is below a threshold voltage. For example, the auxiliary drive signal can be set to a high-level signal (or a low-level signal; no specific limitation is made in this embodiment). The switch control unit can be an electronic device with power supply circuit control function, capable of controlling the opening and closing of the circuit based on the received electrical signal. When the switch control unit receives a high-level auxiliary drive signal, it determines that an abnormal power failure has occurred, controls the auxiliary power supply to connect, and disconnects the power supply.

[0051] It should be noted that the auxiliary power supply can be a backup power supply independent of the main power supply. During normal operation of the main power supply, it will charge the auxiliary power supply. At the same time, in the event of a power failure, the auxiliary power supply will be slowly de-energized (e.g., over 3 seconds) through internal structural settings. During the power failure period, it can continue to provide power so that the locking device can complete its unlocking process (generally within 300-600ms).

[0052] It should be understood that the locking device can be an electromagnetic braking device. When an unlocking level is received, the electromagnetic force releases the brake pads, allowing the laser emitter to be disassembled and removed; when a locking level is received, the spring presses the brake pads, locking the laser emitter in place. The unlocking unit 30 can be an electronic device (such as a microcontroller or MCU) with signal receiving and transmitting functions. During normal operation of the equipment, it can control the locking device to unlock or lock based on the received operation signals. When an auxiliary power supply signal is received, it can be used specifically to drive the locking device to unlock (e.g., generate an unlocking electrical signal).

[0053] This embodiment proposes a gimbal unlocking control circuit for a laser obstacle removal device. The circuit includes an auxiliary power supply, a detection unit, a switch control unit, and an unlocking unit. The first terminal of the detection unit is connected to the power supply, the second terminal of the detection unit is connected to the first terminal of the switch control unit, the second terminal of the switch control unit is connected to the auxiliary power supply, and the third terminal of the switch control unit is connected to the unlocking unit. The unlocking unit is also connected to the locking device of the laser gimbal. The detection unit acquires the power supply signal and, when the voltage of the power supply signal is lower than a threshold voltage, generates an auxiliary drive signal and transmits the auxiliary drive signal to the switch control unit. The switch control unit, upon receiving the auxiliary drive signal, transmits the auxiliary power supply signal to the unlocking unit. The unlocking unit, upon receiving the auxiliary power supply signal, drives the locking device to unlock. By detecting that the power supply signal is lower than the threshold voltage, the detection unit determines an abnormal power failure and uses the auxiliary power supply to drive the locking device to unlock. This ensures that the gimbal of the laser obstacle removal device can still unlock in the event of a fault or abnormal situation, guaranteeing the normal operation of the device hardware.

[0054] Reference Figure 2 , Figure 2 This is a schematic diagram of the second embodiment of the gimbal unlocking control circuit of this utility model applied to a laser obstacle removal device. Based on the first embodiment of the circuit described above, a second embodiment of the gimbal unlocking control circuit of this utility model applied to a laser obstacle removal device is proposed.

[0055] In this embodiment, the fourth terminal of the switch control unit 20 is connected to the power supply Vcc. The detection unit 10 can also be used to generate a main control drive signal when the voltage of the power supply signal is higher than a threshold voltage, and transmit the main control drive signal to the switch control unit 20; the switch control unit 20 can also be used to transmit a locking power supply signal to the unlocking unit 30 when it receives the main control drive signal; the unlocking unit 30 can also be used to drive the locking device 40 to unlock and lock according to the locking power supply signal.

[0056] It should be noted that the main control drive signal can be the output level signal generated by the detection unit when the power supply signal is higher than the threshold voltage. For example, the main control drive signal can be set to a low level signal (or a high level signal; no specific limitation is made in this embodiment). The locking power supply signal can be a control signal transmitted to the locking device and can control the locking and unlocking functions according to the waveform. Transmitting the locking power supply signal and the auxiliary power supply signal to different ports of the locking device can achieve different output control effects. During normal operation of the equipment, the locking device can be controlled to unlock or lock according to the received operation signal.

[0057] Reference Figure 3 , Figure 3 This is a circuit connection diagram of the second embodiment of the gimbal unlocking control circuit of the present invention applied to a laser obstacle removal device. The detection unit 10 includes: a first resistor to a fourth resistor, a first switch Q1, and a first capacitor C1; the first end of the first resistor R1 is connected to the power supply Vcc, the second end of the first resistor R1 is connected to the first end of the second resistor R2, the first end of the first capacitor C1, and the first end of the first switch Q1, the second end of the second resistor R2 and the second end of the first capacitor C1 are grounded, the second end of the first switch Q1 is connected to the first end of the third resistor R3 and the first end of the fourth resistor R4, the second end of the third resistor R3 is connected to the auxiliary power supply Vsp, the second end of the fourth resistor R4 is grounded, and the third end of the first switch Q1 is grounded.

[0058] It should be noted that the first switching transistor is an NPN transistor, which conducts between its collector and emitter when its base receives a high-level signal (it can also be an NMOS transistor). When the power supply signal is working normally, the base of the first switching transistor receives a high level due to the voltage division effect of the first and second resistors, and the collector and emitter conduct, transmitting a low-level main control drive signal to the switch control unit. When the power supply signal fails, the base of the first switching transistor receives a low level, and the collector and emitter are cut off, transmitting a high-level auxiliary drive signal to the switch control unit. The threshold voltage for determining power supply failure is set by the conduction voltage of the first switching transistor and the voltage division effect of the first and second resistors.

[0059] The switch control unit 20 includes: a second switch transistor Q2 and a fifth resistor R5; the first end of the second switch transistor Q2 is connected to the second end of the first switch transistor Q1, the second end of the second switch transistor Q2 is connected to the auxiliary power supply Vsp, the third end of the second switch transistor Q2 is connected to the first end of the fifth resistor R5, and the second end of the fifth resistor R5 is connected to the first end of the unlocking unit 30.

[0060] Furthermore, the switch control unit 20 also includes: a third switch transistor Q3 and a sixth resistor R6; the first end of the third switch transistor Q3 is connected to the first end of the second switch transistor Q2, the second end of the third switch transistor Q3 is connected to the first end of the sixth resistor R6, the second end of the sixth resistor R6 is connected to the power supply Vcc, and the third end of the third switch transistor Q3 is connected to the second end of the unlocking unit 30.

[0061] It should be noted that the second switch Q2 is an NPN transistor (or an NMOS transistor). It is cut off when it receives a low-level main control drive signal; and turns on when it receives a high-level auxiliary drive signal, transmitting the auxiliary power supply signal to the unlocking unit to drive the locking device to unlock. The third switch Q3 is a PNP transistor (or a PMOS transistor). It is cut off when it receives a high-level auxiliary drive signal; and turns on when it receives a low-level main control drive signal, transmitting the lock-up power supply signal to the unlocking unit to drive the unlocking and locking control of the locking device.

[0062] In this embodiment, the detection unit includes: a first resistor to a fourth resistor, a first switching transistor, and a first capacitor. A threshold voltage is set by the voltage division effect of the first and second resistors and the conduction condition of the first switching transistor to determine whether a power failure has occurred. An auxiliary drive signal or a main control drive signal is output by the voltage division effect of the third and fourth resistors. When the switch control unit receives the auxiliary drive signal, it turns on the second switching transistor, thereby controlling the transmission of the auxiliary power supply signal to the unlocking unit to control unlocking. When the switch control unit receives the main control drive signal, it turns on the third switching transistor, thereby controlling the transmission of the main control power supply lock signal to the unlocking unit to control unlocking or locking. Different power supplies are used to ensure the normal operation of the laser obstacle removal equipment during normal operation and during abnormal power failure.

[0063] Reference Figure 4 , Figure 4 This is a circuit connection diagram of the third embodiment of the gimbal unlocking control circuit of this utility model applied to a laser obstacle removal device. Based on the above circuit embodiment, a third embodiment of the gimbal unlocking control circuit of this utility model applied to a laser obstacle removal device is proposed.

[0064] The switch control unit 20 further includes a fourth switch Q4; the fourth switch Q4 is disposed between the sixth resistor R6 and the third switch Q3, and the fourth switch Q4 also receives a lock-up enable signal from the gimbal controller.

[0065] It should be noted that the pan-tilt controller can be an integrated controller installed inside the laser obstacle removal equipment to control the rotation of the laser pan-tilt head and the locking / unlocking control of the locking device. The operator can control the unlocking or locking status of the locking device during normal operation of the laser obstacle removal equipment via the control panel (e.g., buttons). The pan-tilt controller can generate a locking enable signal with a specific waveform or a locking enable signal with a specific duty cycle based on the operator's selection. The locking enable signal, based on its specific waveform transformation, controls the locking power supply signal output from the switch control unit to the unlocking unit, thereby driving the unlocking and locking control of the locking device.

[0066] In one possible implementation, the unlocking unit drives the locking device to unlock and lock based on a specific duty cycle of the PWM wave in the locking power supply signal. For example, the fourth switch Q4 locks the locking device when it receives a high-level signal with a duty cycle of 80%, and unlocks it when it receives a high-level signal with a duty cycle of 20%. The high and low levels of the locking enable signal from the PTZ controller control the conduction and cutoff of the fourth switch Q4, thereby controlling the duty cycle of the locking power supply signal.

[0067] Furthermore, the gimbal unlocking control circuit applied to the laser obstacle removal equipment also includes: a charging circuit 50; the first end of the charging circuit 50 is connected to the power supply Vcc, and the second end of the charging circuit 50 is connected to the auxiliary power supply Vsp.

[0068] The charging circuit 50 includes a seventh resistor R7 and a second capacitor C2. The first end of the seventh resistor R7 is connected to the first end of the sixth resistor R6, the first end of the second capacitor C2, and the auxiliary power supply Vsp. The second end of the seventh resistor R7 is connected to the second end of the second capacitor C2 and grounded.

[0069] It should be noted that the main power supply can charge the auxiliary power supply during normal operation, ensuring that the auxiliary power supply has a certain amount of electrical energy. The auxiliary power supply can also power some safety devices in the laser obstacle removal equipment (such as indicator lights) during normal operation. In the event of a power failure, it is only used for unlocking the locking device to ensure normal unlocking.

[0070] In one possible implementation, the gimbal unlocking control circuit applied to the laser obstacle removal device further includes: a rectifier; a first end of the rectifier is connected to the mains power, and a second end of the rectifier is connected to the power supply Vcc; the rectifier is used to convert the AC signal of the mains power into the DC signal of the power supply Vcc.

[0071] It should be understood that the electronic components in laser obstacle removal equipment are all DC controlled. Therefore, the AC mains power can be converted into a DC power supply signal to power the components through a rectifier (such as a rectifier bridge) to ensure the normal operation of the equipment. The rectifier can also contain a transformer to convert 220V AC mains power into 24V / 12V DC power supply signals.

[0072] In this embodiment, the switch control unit further includes a fourth switch disposed between the sixth resistor and the third switch. By controlling the locking enable signal sent to the fourth switch, the locking power supply signal of the laser obstacle removal device during normal operation is controlled. The unlocking unit can drive the locking device to unlock and lock according to the locking power supply signal. At the same time, a charging circuit is provided to ensure that the auxiliary power supply has the power to drive unlocking when the device experiences an abnormal power failure, thus ensuring the normal operation of the device.

[0073] Furthermore, this utility model embodiment also proposes a laser obstacle removal device. (Refer to...) Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the structure of an embodiment of the laser obstacle removal device of this utility model. Figure 6 This is a circuit connection diagram of an embodiment of the laser obstacle removal device of this utility model. The laser obstacle removal device includes a laser emitting device, a laser pan-tilt unit, and a pan-tilt unlocking control circuit as described above.

[0074] Since the laser obstacle removal device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0075] The above description is only a preferred embodiment of the present utility model and does not limit the scope of protection of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A gimbal unlocking control circuit for laser obstacle removal equipment, characterized in that, The circuit includes: an auxiliary power supply, a detection unit, a switch control unit, and an unlocking unit; The first end of the detection unit is connected to the power supply, the second end of the detection unit is connected to the first end of the switch control unit, the second end of the switch control unit is connected to the auxiliary power supply, the third end of the switch control unit is connected to the unlocking unit, and the unlocking unit is also connected to the locking device of the laser gimbal. The detection unit is used to acquire the power supply signal of the power supply, generate an auxiliary drive signal when the voltage of the power supply signal is lower than the threshold voltage, and transmit the auxiliary drive signal to the switch control unit. The switch control unit is used to transmit the auxiliary power supply signal of the auxiliary power supply to the unlocking unit when it receives the auxiliary drive signal; The unlocking unit is used to drive the locking device to unlock when the auxiliary power supply signal is received.

2. The gimbal unlocking control circuit for laser obstacle removal equipment as described in claim 1, characterized in that, The fourth terminal of the switch control unit is connected to the power supply. The detection unit is also configured to generate a main control drive signal when the voltage of the power supply signal is higher than the threshold voltage, and transmit the main control drive signal to the switch control unit; The switch control unit is also used to transmit a lock power supply signal to the unlocking unit when it receives the main control drive signal; The unlocking unit is also used to drive the locking device to unlock and lock according to the locking power supply signal.

3. The gimbal unlocking control circuit for laser obstacle removal equipment as described in claim 2, characterized in that, The detection unit includes: a first resistor to a fourth resistor, a first switching transistor, and a first capacitor; The first end of the first resistor is connected to the power supply. The second end of the first resistor is connected to the first end of the second resistor, the first end of the first capacitor, and the first end of the first switching transistor. The second end of the second resistor and the second end of the first capacitor are grounded. The second end of the first switching transistor is connected to the first end of the third resistor and the first end of the fourth resistor. The second end of the third resistor is connected to the auxiliary power supply. The second end of the fourth resistor is grounded. The third end of the first switching transistor is grounded.

4. The gimbal unlocking control circuit for laser obstacle removal equipment as described in claim 3, characterized in that, The switch control unit includes: a second switch transistor and a fifth resistor; The first end of the second switch is connected to the second end of the first switch, the second end of the second switch is connected to the auxiliary power supply, the third end of the second switch is connected to the first end of the fifth resistor, and the second end of the fifth resistor is connected to the first end of the unlocking unit.

5. The gimbal unlocking control circuit for laser obstacle removal equipment as described in claim 4, characterized in that, The switch control unit also includes: a third switch transistor and a sixth resistor; The first end of the third switch is connected to the first end of the second switch, the second end of the third switch is connected to the first end of the sixth resistor, the second end of the sixth resistor is connected to the power supply, and the third end of the third switch is connected to the second end of the unlocking unit.

6. The gimbal unlocking control circuit for laser obstacle removal equipment as described in claim 5, characterized in that, The switch control unit further includes: a fourth switch transistor; The fourth switch is disposed between the sixth resistor and the third switch, and the fourth switch also receives a lock-up enable signal from the gimbal controller.

7. The gimbal unlocking control circuit for laser obstacle removal equipment as described in claim 6, characterized in that, The gimbal unlocking control circuit also includes: a charging circuit; The first end of the charging circuit is connected to the power supply, and the second end of the charging circuit is connected to the auxiliary power supply.

8. The gimbal unlocking control circuit for laser obstacle removal equipment as described in claim 7, characterized in that, The charging circuit includes: a seventh resistor and a second capacitor; The first end of the seventh resistor is connected to the first end of the sixth resistor, the first end of the second capacitor, and the auxiliary power supply. The second end of the seventh resistor is connected to the second end of the second capacitor and grounded.

9. The gimbal unlocking control circuit for laser obstacle removal equipment as described in claim 1, characterized in that, The gimbal unlocking control circuit also includes: a rectifier; The first end of the rectifier is connected to the mains power, and the second end of the rectifier is connected to the power supply. The rectifier is used to convert the AC signal from the mains power supply into the DC signal from the power supply.

10. A laser obstacle removal device, characterized in that, The laser obstacle removal device includes: a laser emitting device, a laser gimbal, and a gimbal unlocking control circuit as described in any one of claims 1-9.

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